" They want me to play a drunk , so I said , ' You got some booze ? ' "

1.Anya Taylor-Joyactuallygot a nosebleed in theEmmascene where Mr. Knightley confesses his love. “I don’t know what happened, but I guess I believed I was in the moment enough that my nose really started bleeding. It was just so magic, and Johnny and I were looking at each other like, ‘Oh my God, oh my God, oh my God, roll the cameras.'” Apparently, Taylor-Joy used to get lots of nosebleeds as a kid, but she never expected to spontaneously get one at the perfect moment. “The plan was to pause filming and add the blood and then continue,” Taylor-Joy said. “I provided the blood, so there was no need.”

2.Tricky was not told just how big the explosion behind him andGary Oldmanwould be in this scene fromThe Fifth Element— in fact, the fire was even scarier than expected, as the wind brought the flames back towards the actors and even melted some of Oldman’s costume. As such, Tricky’s reaction was real. “Tricky soiled his costume,” Oldmanjoked.

3.Similarly, the maid inGhostbusters, played by Frances Nealy, was truly scared by the cart explosion in the film. She had been told it was going to blow up, but didn’t expect the level of pyrotechnics. Visual effects director John Brunosaid, “It scared the hell out of her. She fell to the ground, looked up, and was like, ‘What the hell are you doing?’ It wasn’t scripted. It’s just what happened.”

4.Multiple actors inCasablancawerereal-life refugees who had fled the Nazis. In theLa Marseillaisescene, many of the actors were truly moved by singing the song of resistance. Madeleine Lebeau, in particular, had fled Nazi-occupied France two years before filming the scene, and her teary-eyed close-up became famous for how authentic it felt. Leslie Epstein, whose father Philip Epstein and uncle Julius Epstein wrote the film, noted, “They’re not tears of glycerin shed by an actress. The tears in her eyes are real.” Epstein also said, “When people speak here, the accents are real. … In a sense, they’re playing themselves.”

5.James Marsdenwasreally hit by bikers in this scene fromEnchanted.In the first few takes, the bikers would lightly bump him, and he’d fake falling over, but Marsden didn’t feel it was funny enough. It was also his last day of shooting, so he wasn’t too worried about delaying production with an injury. “‘Just take me out!'” Marsden recalled telling the stuntpeople. “So he knocked the hell out of me, but it’s funnier. My voice squeaks and he just knocks me down, but there was a pad in front of me, and, actually, the prince’s suit is pretty padded.”

6.Jack Nicholson and his costarswerereally high in theEasy Ridercampfire scene. “We were all stoned the night we shot the campfire scene,” Nicholson recalled. “The story about me smoking 155 joints – that’s a little exaggerated. But each time I did a take or an angle, it involved smoking almost an entire joint. After the first take or two, the acting job became reversed. Instead of being straight and having to act stoned at the end, I was now stoned at the beginning and having to act straight.”

7.Similarly, Norm Macdonald wasreallydrunk while filming some ofBilly Madison.“They wanted me to play a drunk, so I said, ‘You got some booze?'” he revealed onConan. In fact, in one pool scene, he fell asleep while the camera was rolling, he was so drunk — and didn’t understand why everyone was calling him Frank (his character’s name).

8.And Nicolas Cage was truly blackout drunk while filming this breakdown scene inLeaving Las Vegas. He spent most of the film sober — besides what he said was a taste here and there “just to get a sense of, like, the Albert Finney” — but he decided he would try out, just once, getting blackout drunk. He actually had a “drinking coach” who got him drunk on Sambuca. “I was drinking the Sambuca and I went downstairs, and I was like, whatever happens, get it, because this isn’t gonna happen again,” Cage recalled. The resulting footage of the devastating momentwas usedin the film.

9.InThe Deer Hunter, writer/director Michael CiminotoldChristopher Walken to truly spit in Robert De Niro’s face in this scene. De Niro had no idea he was going to do this, and was reportedly trulyangryat the time, though he later said, “It worked. It got the reaction the scene needed.”

10.In the same film, Walken was truly slapped in the Russian Roulette scene. “We shot that in the jungle,” Walkensaid. “We were put in bamboo cages. It was all for real. Right down to the slap in the face.” De Niro had actually told the actor to slap Walken, who wasn’t expecting it.

11.InDeep Blue Sea, the cast dealt with an accident on-set that made it into the film. In the helicopter scene, after hooking up Whitlock, the crew runs back to the elevator as waves crash around. “At one point, three tons of water got thrown on us by accident, and we got swept toward those cargo bays, and everyone thought we were going into the drink, and people were tumbling around this metal grating,” star Samuel L. Jacksonrevealed.“They hit us full on with three tons of water. That was not supposed to happen, and we didn’t have safety harnesses on, and we were flailing around on this deck.” While Jackson claimed they were “still acting,” it was still a genuinely unexpected moment that ended up in the film and made it seem more real.

12.This memorable scene at the end ofCaptain Philips,where Philips is evaluated by a corpsman, was made to feel even more genuine byusinga real corpsman. The scene wasn’t in the original script, and director Paul Greengrass decided to add it on the day while shooting at Norfolk Naval Station. He asked a corpsman there, Danielle Albert, to improvise a scene with star Tom Hanks. She wasn’t an actor, and she really treated Hanks as if he were a patient.

13.Russell Crowe was actuallytalking about his own homewhen his character talked about home inGladiator.He ad-libbed much of the speech, throwing in references to his real home in Australia.

14.The people talking about dust storms at the start ofInterstellarwereactual witnessesof the 1930s Dust Bowl. The clips are an excerpt from the 2012 documentaryThe Dust Bowl.

15.The scene inSpider-Manwhen Peter caught the food on MJ’s tray was not done with CGI —Tobey Maguire actually caught it(though his hand was glued to the tray). It took 156 takes.

16.Similarly, you can see from the bloopers that Michael Cera really made this package-throwing shot inScott Pilgrim vs. the World…butit took him 33 tries.

17.Even more impressively, Kurt Russellactuallymade all those shots in the basketball scene fromEscape From L.A.

18.Tippi Hedren was truly attacked by birds in this horrifying scene fromThe Birds.They were originally going to use mechanical birds, but Hedren was told they werenot workingand that she would be attacked by live birds instead. For five days, Hedren said, live birds trained to peck her were thrown at her and even tied to her. When one almost pecked her eye, shebroke downand had to spend a week in bed due to exhaustion. This is the footage you see in the film.

19.Jake Gyllenhaal was always meant to hit the mirror inNightcrawler,butit wasn’tsupposed to break. When it did, it cut Gyllenhaal’s hand, and he had to go to the ER to get stitches. This take, with Gyllenhaal’s real-life injury, actually ended up in the movie.

20.Director Ivan Reitman had most of thekidsad-lib about their real dads’ jobsinthisKindergarten Copscene.

21.The opening airport scene ofLove Actuallyfeaturedreal couples and familiesgenuinelyembracing.

22.In the beginning scene of22 Jump Street, when Schmidt is attacked by a bird, Jonah Hill’s reaction isauthentic— he reallyis terrified of birds.

23.In a comedic moment of1941,John Belushi’s Kelso falls not once but twice as he’s trying to get back onto his plane. He then recovers with an ironic bravado. The second fall — the more serious one —truly happened by accident. Belushiactuallyfell off the wing and landed on his head, sustaining such a serious injury that he had to go to the hospital. However, it made the scene even funnier, and it was kept in.

24.While filmingThe Passion of Christ,Jim Caviezelwashit by a cross that weighed over 250 pounds. “It fell on my head, and I bit through my tongue and my cheek,” he said. “And it was actually in the film. You see blood streaming out of my mouth.”

25.In theAnchormanscene where Ron wanders the streets, drinking milk, Will Ferrellimprovisedthe “milk was a bad choice” — because it was exactly what he was thinking. “He’s sitting there with a carton of milk — we’re shooting in San Pedro and it’s hotter than hell — and Will just said it for real. It’s perfect, because it was an honest moment from the human Will Ferrell speaking through Ron Burgundy,” David Koechnerrevealed.

26.InCheech & Chong’s Up in Smoke, the dog that eats Chong’s burrito was areal straythatjust wandered up and ate the burrito. It wasn’t in the script.

27.At one point inBlade Runner, Daryl Hannah’s Pris runs and falls onto a van, jamming her elbow into the window before continuing to flee. This was Hannahgenuinelyslipping. She finished the take, then had her elbow looked at and found out it was chipped in eight places. However, it added to her character’s desperation and was kept in.

28.Dustin Hoffmanactually accidentally fartedin the phone booth scene inRain Man, and Tom Cruise’s reactions were improvised and somewhat real. Hoffmancalled ithis “favorite moment” of any film he’s done. “That includes Shakespeare that I’ve done on stage, anything.”

29.InBurnt,Bradley Cooperimprovisedhis character’s suicide attempt, and his costar Matthew Rhys was genuinely afraid Cooper might die. “It was late at night, and we didn’t have much time, and the bag thing just sort of happened in one of the takes,” Cooper said. Rhys acted quickly, saving Cooper, and the scene made it into the final film.

30.The actors’ reactions to the gunfire in thisBoyz n the Hoodscenewerereal, according to star Ice Cube. Director John Singleton didn’t tell the actors there would be real gunfire in the scene.

31.Child actor Oliver Robins truly was being strangled in the clown scene inPoltergeist.Robinsexplained to Frighthow the extended arm of the clown got caught around his neck: “I was in a tight, confined space under the bed, and … it’s almost like a car accident. You know how a car accident happens so fast, you don’t remember, but if you don’t act, something is going to happen? Well, Steven saw that, probably in the video assist, and he pulled me away from it. Who knows what might have happened otherwise.”

32.Lorenza Izzowas really drowningin one frightening scene fromTheGreen Inferno,where Justine tries to escape a canoe of cannibals and jumps into the water. Izzo grabbed a rock and fought against the current as she screamed; she had a safe word to use if she was really in danger, but it was too loud for anyone to make it out. They thought she was acting until they realized she was shouting in English and Spanish. The footage ended up in the film.

33.The lion attack fromTarzan, the Ape Manwasreal. The lion unexpectedly darted for star Bo Derek while filming a scene where she first meets Tarzan (played by Miles O’Keeffe). O’Keeffe put himself between the lion and Derek, who tried to crawl to safety into the water, where the lion would not follow. She got away, but not before the lion sliced her shoulder with his paw. The footage stayed in the final cut — in fact, the scene was adjusted so that the attack could be included.

34.Michael McDonald wastrulyhit by a phone book in this scene fromThe Heat.McCarthy ended up being positioned closer than McDonald had thought she would be, and he didn’t have time to dodge, meaning he was hit directly in the face, and his reaction was real. “Everyone, including Melissa and me, was thinking that my nose was broken,” he revealed. “All I could think of was, ‘Nobody break. Nobody laugh.’ Because I only want to do this once.” Luckily, his nose was alright, though Melissa was soon injured as well: “She ran over so fast to see if I was all right that she slid on the phone book on the floor, and then everybody just ran to Melissa, of course.” He joked, “I knew where I ranked.”

35.InClueless,Alicia Silverstoneactually thought"Haitians" was pronounced that way — she wasn’t trying to act dumb. The director, Amy Heckerling, thought it was so funny that she declined to correct her.

36.The actors’ reactions in this scene fromRocky Horror Picture Show— where Dr. Frank-N-Furter pulls off the tablecloth to reveal a dead body — were real. None of the actors, except Tim Curry,knewit was there, as director Jim Sharman wanted a genuine reaction.

37.Will Ferrell’s reaction of surprise to the Jack-in-the-box inElfwas also real. Director Jon Favreaucontrolledthe jack-in-the-boxes from offscreen so that Ferrell’s surprise would be genuine.

38.And finally, we’ll end with some behind-the-scenes facts from 1974’sThe Texas Chainsaw Massacre,which was a real-life nightmare to shoot. The cast and crewwere pushedto their breaking point while acting in horrible conditions, particularly during the 26-hour shoot of the dinner scene, which took place in over 100-degree heat around rotting animals (cast and crew wouldperiodicallygo outside to puke).

39.At one point, Gunnar Hansen, who played Leatherface, got impatient with problems involving the fake blood and really did cut star Marilyn Burns’s finger and put it to actor John Dugan’s lips. Dugan reportedly didn’trealizehe drank her real blood until years later, when he called it “kind of erotic.”

40.Allen Danzigerwasgenuinely frightened the first time his character saw Leatherface — as it was also his first time seeing the actor in-costume. His scream was real.

41.Hansen alsouseda real chainsaw while chasing the actors around, and at one point, he was doing so while high after accidentally ingesting pot brownies during the shoot. Burns also really did twist her ankle when jumping six feet for her character’s escape scene. Hansen was so terrifying that at one point, Burnssaid, she began to question whether this was actually a snuff film and he really did want to hurt her.

42.In the scene where actor Jim Siedow beats Burns,he really didhit her multiple times (with her permission). She actually passed out when filming cut. “Every time we’d try it, she’d come up with a few more bruises. Finally, I got with it and started having fun doing it and started really slugging her, and we kept that up — we did eight shots — and then they finally said, ‘That’s a take.’ She just fainted dead away. The poor girl was beaten up pretty badly,” Siedow said. TL;DR: The film was a LOT more real than you thought.

Anya Taylor-Joy with a nosebleed in Emma

explosion behind Tricky and Gary Oldman's characters; Tricky reacts in shock, while Oldman is unconcerned

A cart with supplies being hit by electricity from Ghostbusters. Maid hides behind cart and demands, "What the hell are you doing?"

Lebeau singing, teary-eyed

Edward being knocked over by cyclists

Jack Nicholson and Dennis Hopper sitting outdoors, smoking a joint

MacDonald lying on the ground amid trash  by a pool with his eyes closed

Cage yells, "God! Fuck!" and "I am his father!" while several others, including security, try to restrain him

Wwalken spits on De Niro

man slaps Walken in hut-like structure

cast members being pushed over and swept towards crates by waves, then getting up again

A medical scene with a corpsman and Hanks' character. Corpsman introduces herself and tells Hanks he's safe

Crowe talks about home, listing the trees and plants, and stones warmed by the sun

Three older individuals discuss living conditions during Dust Bowl

Peter catches MJ's food

Cera throws package behind him into bin; he succeeds on the 33rd try, and everyone cheers

Russell throwing basketball through hoop from various positions

Hedren with a bloody face and arm held up to her face

Jake Gyllenhaal angrily slams the medicine cabinet shut, breaking the glass

One kid's dad works on computers and is the boss of his company, and another's is a psychologist who "helps people that are hurt or lost their feelings"

Close-ups of people hugging and kissing

Jonah shielding himself from the birds

Kelso attempts to get on the plane but keeps falling

Caviezel, wearing robes and a crown of thorns, struggles to carry a heavy wooden cross, then collapses

will says, "it's so damn hot," then chugs milk and says, "milk was a bad choice"

dog walks up and steals the burrito as Chong says, "good dog, man…hey!"

Daryl Hannah, frightened, runs through a dimly lit, machinery-filled setting, slipping and hitting her elbow on a car window

In a phone booth, while Tom is on the phone, Hoffman says "uh oh, fart," and Tom asks if he farted, then opens the door

Screenshots from "Burnt"; Cooper puts a plastic bag over his head, which Rhys tears off

Cast members in and around a car react to gunshots, ducking

The clown strangling Robbie

closeup of lorenza with blood on her face

A lion attacking Bo Derek on the shore; O'Keeffe protects Derek

McCarthy hits McDonald with a phone book while in an interrogation room

Cher giving a speech about Haitian refugees and how they should be welcome in America

Frank-N-Furter pulls off tablecloth to reveal a corpse; the other characters react with shock

Buddy reacts with fear and surprise when the jack-in-the-box pops out

A scene from the movie around a dinner table, with a skull in the middle

Sally's finger being cut and then held up to the mouth of a very old man

Danziger reacts in horror at seeing Leatherface

Leatherface with the chainsaw

Siedow smiling creepily and sitting at a table