Factual error: The scene at the car lot in the beginning is supposed to take place in Chicago. Mountains and palm trees are visible in one angle when Clark is talking to Ed about the car being the wrong one.
National Lampoon's Vacation (1983)
1 picture
Directed by: Harold Ramis
Starring: Eugene Levy, Chevy Chase, John Candy, Randy Quaid, Anthony Michael Hall, Beverly D'Angelo, Jane Krakowski, Eddie Bracken, Christie Brinkley, Imogene Coca
Revealing mistake: In the film's first scene, as Clark and Russ Griswold make a left hand turn to pull into the used car lot in Chicago, the upper quarter of the screen shows mountains and palm trees in the background, which is an impossibility for Chicago. I believe the nearest mountain range to Chicago is in Arkansas and the nearest palm trees reside in Louisiana. (This scene was filmed in California, which explains the mountains and palm trees, BUT nonetheless a mistake.)
Cousin Vicki: I'm going steady, and I French kiss.
Audrey Griswold: So? Everybody does that.
Cousin Vicki: Yeah, but Daddy says I'm the best at it.
Trivia: Not a mistake but a "before they were famous": little cousin Vicky with the blonde hair is Elaine on Ally McBeal (Jane Krakowski).
Answer: Harold Ramis voiced Marty Moose.