Mistakes

Near the end when Jason throws the hammer at the girl, it sticks to the damaged part of the wall after it hits. But it's just against the wood with the flat top, there's nothing to hold the hammer there and it's only hit the wood on the other side of the wall. They probably used a magnet to attract and keep it there for safety reasons. See more...

Trivia

When Judie Aronson, who plays Samantha, was filming the scene in the raft where she gets killed, they were doing so many takes. She was wet and cold and wanted to warm up. The director refused until he got the shot he wanted which made Judie cry and freak out. Ted White, who played Jason, was so upset about this that he demanded they get her a blanket and let her get warmed up or he would walk off the set and not come back. Needless to say, Judie got warmed up very quickly. See more...

Picture