Note: Some of the following stories include graphic descriptions.
1. Brendan Fraser passed out after almost accidentally hanging himself while filming a scene in The Mummy because he wanted it to look super realistic.

Here's Brendan Fraser telling the full story:
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2. Leo DiCaprio went skydiving one time, but BOTH of his parachutes didn't work, resulting in "one of the worst experiences" of his life.

3. Leo DiCaprio was also on a plane when one of the engines burst into flames, and during the emergency landing, all of the tires exploded.

Here's Leo DiCaprio telling both of those stories:
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4. Jackie Chan has broken pretty much every single part of his body (and he even has a hole in his head), but one time he cracked his skull while filming a stunt for Armour of God.

Here's Jackie Chan telling the full story about cracking his head, and below is the video of him talking about all of his other on-set injuries:
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5. Meryl Streep and Tracey Ullman were both on a flight when one of the engines exploded and then the other cut out, causing the plane to rapidly descend and make an emergency landing.

Here's Tracey Ullman telling the full story:
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6. Steve-O broke his skull after flying off a balcony at the University of Miami and landing on his face on the concrete.

The video is age-restricted, but you can watch Steve-O tell the full story here.
7. Michael J. Fox "swung unconsciously" after almost accidentally getting hanged while filming Back to the Future Part III.

Here's the full scene from Back to the Future Part III:
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8. Betty Danko, aka Margaret Hamilton's stunt double in The Wizard of Oz, spent 11 days in the hospital after a pipe in the character's broomstick exploded, throwing her across the set.

9. Jason Statham almost drowned at the bottom of the Black Sea while filming a driving stunt for The Expendables 3.

Here's Jason Statham telling the full story:
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10. Angus Cloud accidentally fell into a construction ditch when he was younger and broke his skull, along with multiple fingers, and then he had to climb out after waking up 12 hours later.

11. Sylvester Stallone was hit so hard in the chest by Dolph Lundgren while filming a boxing scene in Rocky IV that he had to stay in the ICU for nine days.

Here's Sylvester Stallone telling the full story:
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12. Harrison Ford has been flying planes and helicopters for years, and he's survived multiple crashes and injuries, including a broken back.

Here's Harrison Ford telling the full story of his 2015 crash:
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13. Buddy Ebsen was the original Tin Man in The Wizard of Oz, but the aluminum dust from the makeup nearly killed him, so he was replaced by Jack Haley.

Here's Buddy Ebsen telling the full story (from 16:41–17:49):
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14. Isla Fisher almost drowned in front of the entire cast and crew while filming an underwater "magic trick" scene in Now You See Me.

Here's Isla Fisher telling the full story:
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15. Oliver Robins' character in Poltergeist was supposed to get choked by a clown doll, but he ~actually~ got choked while filming the scene, which literally caused him to turn purple.

Here's the full scene with the clown doll from Poltergeist:
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16. Dylan O'Brien was severely injured in a stunt gone wrong while filming the final Maze Runner movie, leaving him with a facial fracture and brain trauma.

Here's Dylan O'Brien briefly talking about the incident:
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17. And Jessica Lange was on a flight with Ryan Murphy when the power shut off and the pilot's control panel broke down, causing everyone to sob and scream for their lives...except Jessica.
