Factual error: The Air America helicopter that flew Tom Hanks and company out to the site was a Bell 212 (Twin Huey) The movie allegedly takes place in 1962. That model Huey was not introduced until 1968.
Volunteers (1985)
1 mistake - chronological order
Directed by: Nicholas Meyer
Starring: Tom Hanks, John Candy, Rita Wilson, Tim Thomerson
Genres: Comedy
John Reynolds: I'll tell you what I'm going to do. I'm gonna kill you, I'm gonna skin you, and I'm going to use your shin bone for a pencil box.