Trivia: Friday the 13th (1980)
- Enforced Method Acting: Ari Lehman, who played Jason was originally intended to only appear in a short flashback of him drowning. But the director decided to have him appear in the end as a surprise. He was instructed not to show anyone the mask he wore for the scene. The shock and fear on Alice's face is genuine.
- Hey, It's That Guy!: It's Kevin Bacon!
- Money, Dear Boy: Betsy Palmer's only reason to appear was to get cash for a new car.
- Old Shame: Initially for Betsy Palmer but she embraced it when the franchise became so popular.
- Playing Against Type: Betsy Palmer mentioned how at the time she was typecast as a Girl Next Door and stuck doing game shows. So playing a "psycho-biddy" was quite a different role for her.
- What Could Have Been: Jason's original name was supposed to be Josh.
- Working Title: The script of the film was originally called "Long Night at Camp Blood".