Trivia: Charlie Sheen stayed awake for 2 days to play the guy in the police station, so he could get the right look for the scene.
Trivia: Kim Cattrall was surprised when she got to the set for the prison scene one morning, as no one told her she would be hogtied for the entire scene (in the story, it was due to a deleted scene when she made trouble for her guards). She endured it like a professional, occasionally having her gag removed so she could drink water. When asked by John Carpenter whether or not she was uncomfortable, she simply replied 'I've been in tighter situations than this!'
Trivia: In the opening montage of shots, showing Thornton Mellon's progressive rise to the top, one of the final shots is actually that of Al Czervik, the role Rodney Dangerfield played in Caddyshack.
Trivia: When Howard knocks the duck hunter out of his boat, the hunter lets out a "Wilhelm scream."
Trivia: In real life, Rae Dawn Chong (Sarah) and C. Thomas Howell (Mark) really did have a relationship and were even married. They were divorced in 1990, though.
Trivia: Both Michael J. Fox and Anthony Michael Hall turned down the role of Duckie.
Trivia: To make the effects of Audrey II look convincing, the animatronic was usually shot at a lower frame-rate, such as 12 frames per second, and then played back at the standard 24fps. This sped-up the shots and made the animatronic's motions look more fluid and lifelike. In order to compensate, whenever a human actor would be in-shot with Audrey II, they would have to act in "slow motion" in order for their movement to look right at 24fps. (You can kinda tell in a few shots if you look closely).
Trivia: Debra Winger was originally offered the role of Peggy Sue, but had to pull out after suffering a back injury in a bicycle accident.
Trivia: The main characters in this film are Johnny and Stephanie, and the film is directed by John Badham. In one scene, Johnny watches Saturday Night Fever on TV. The scene he watches, (and imitates with Stephanie), involves two characters also called John and Stephanie. Saturday Night Fever was also directed by John Badham. (01:02:20)
Trivia: A very young Jason Alexander AKA George Costanza from Seinfeld is one of the pool players that hustles Eugene's brother in the pool hall. He is credited as Pool Player 1.
Trivia: When the family is having Thanksgiving dinner in the beginning of the film, the man that says "Don't forget to give me the receipts Dave" is director Paul Mazursky. (00:08:45)
Trivia: The precis for Croc Dundee is a New Yorker travels to Australia, finds an Australian man, takes him back to New York, falls in love with him, drops her current beau and marries him. This mirrors reality. Linda Kozlowski married Paul Hogan after meeting on this film. He left his wife for her. In the sequel the characters return to Australia for protection, loved it and stayed. Likewise the real life stars moved back to Australia and lived in Byron Bay for 17 years or so.
Trivia: After the six wires are cut to defuse the weapon, you can see the amount of time left on the clock is 07:16:45, which is the date of the first successful test of the Atomic Bomb.
Trivia: The priest you see in the police line-up is the film's director, Jerry Paris.
Trivia: John Cleese and Ann Way both starred in the Fawlty Towers episode "Gourmet Night", in which Cleese played his recurring role of Basil Fawlty and Way played the guest Mrs Hall.
Trivia: Tobe Hooper played up the black comedy in this sequel as he felt that all the dark humor in the original had been ignored by audiences due to the film's shocking content. He wanted to make sure that audiences knew the film was meant to be scary AND funny.