18 Wildly Creepy And Unnerving Hollywood Facts That, No Lie, I Kind Of Wish I Didn't Know

1.Oliver Robins, who played Robbie in Poltergeist, was actually being strangled in the clown scene.

MGM/UA Entertainment Co.

Robins explained to Fright how 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."

2.The film Caine changed its name to Shark after a stuntperson was killed by a shark during filming. They then used photos of the accident to promote the film.

Poster for the film using an excerpt from an article about the accident

3.The Lone Gunman predicted not only 9/11 but also conspiracy theories about its cause.

Melvin and Richard at a computer

4.Also in relation to 9/11 — the Master of Disguise cast and crew were apparently informed of the events while filming the turtle scene. After a moment of silence, they continued filming.

Sony Pictures Releasing

According to IMDb and a number of unofficial sources, the turtle scene was shot on Sept. 11. This has never been confirmed or denied by the filmmakers or actors, but the time when the movie was filmed does line up with Sept. 11.

5.Two young children and a veteran actor were killed when a helicopter crashed into them on the set of Twilight Zone: The Movie.

Vic in the film

6.This Pearl Harbor scene from Tora! Tora! Tora! featuring people running from an exploding plane happened by accident. This wasn't supposed to happen, and the stuntpeople running from the flames were really running for their lives.

ThePropKing / YouTube / Via youtube.com

"Shrapnel was flying everywhere," stuntperson Phil Adams said, describing what it was like to film the sequence. "It was probably some of the best footage that we shot that day."

7.Isla Fisher almost drowned for real while filming the water tank scene in Now You See Me.

Lionsgate

Her release chain got stuck in her costume, meaning she was stuck for the three-minute sequence. "I was actually drowning," she told Chelsea Handler on Chelsea Lately. "Everyone thought I was acting fabulously ... no one realized I was actually struggling."

8.And that scene when Diane falls in the muddy pool, only to find herself surrounded by skeletons? Well, turns out they were real human skeletons — which no one told actor JoBeth Williams about.

MGM/UA Entertainment Co.

Also, actor Will Sampson performed an exorcism on the set of the sequel after hearing about the use of human skeletons in the first film.

9.Judith Eva Barsi, the child actor who most famously voiced Ducky in Land Before Time, was murdered by her father at the age of 10.

Judith

He also murdered his wife, Judith's mother, before killing himself. Eerily, Judith had previously played a child murdered by her father in Fatal Vision.

ABC Photo Archives / Disney General Entertainment Content via Getty Images, Universal Pictures

10.A creepy Sesame Street segment from the '70s called "Cracks" was lost until a man named Jon Armond began to search for it after remembering being traumatized by it as a kid. After years of searching, he received a fax from an unknown, untraceable number promising to send him the segment as long as he agreed never to screen it in public, post it online, or send it to anyone else. He agreed and found a copy of the segment in his mailbox.

"The crack just growled instead and made himself very big and mean. He said, 'I am crack master!' But just then, the wall of plaster began to crumble to the floor" with a little girl and wall crack creatures watching

11.The ending of the thriller Sliver almost caused the death of three people when they accidentally crashed into a volcano.

Helicopter flying into volcano

12.The set for the home of Regan and her mother in The Exorcist mysteriously burned down before filming one morning. However, Regan's bedroom set was apparently untouched.

Regan's head turning in her bedroom

13.Paul Bateson, an extra who played a radiological technologist in The Exorcist, was later convicted of the murder of film critic Addison Verrill.

Bateson in the film

14.Three members of the cast and crew of The Omen were plagued by strange lightning while filming.

Gregory Peck in the film

15.And special effects artist John Richardson was in a car crash that decapitated his assistant a year after doing the makeup for The Omen's decapitation scene.

Richardson at an awards show

16.Stuntperson Alf Joint — who had worked on The Omen — was seriously injured filming a routine roof-jumping stunt on the film A Bridge Too Far. In the hospital, he said it felt as if he'd been pushed.

Alf on set of a film

Apparently, he fell suddenly and awkwardly instead of jumping, as he was trained to do.

Larry Ellis / Daily Express / Hulton Archive / Getty Images

17.Though the film did not include it, the No Country for Old Men novel featured the line, “Here a while back in San Antonio they shot and killed a federal judge.” This was likely referring to Charles Harrelson's 1979 murder of Judge John Howland Wood. Charles Harrelson's son? Woody Harrelson, who was one of the film's stars.

Woody in the film

18.And finally, The Simpsons has predicted a lot over the years, which the creators feel is mostly just educated guessing. However, they have no real explanation for this creepy brochure Lisa holds that seems to be a reference to 9/11...in an episode that aired in 1997.

Lisa holding a brochure advertising something for $9 with the Twin Towers, looking like an "11," in the background

They apparently chose the number 9 because it was comically small, and the Twin Towers in the background were just an eerie coincidence.

Fox

What behind-the-scenes Hollywood facts always freak YOU out? Let us know in the comments!