Revealing mistake: In the scene where Christie Brinkley takes off her clothes and invites Chevy into the pool, he takes off his pants and we are supposed to assume he's naked. When he dives in you can see he's wearing flesh coloured underwear.

National Lampoon's Vacation (1983)
Plot summary
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
Clark Griswald has planned a vacation with his family to wally world, but unfortunatly his trip does not go to plan and the trip has a few hilarious problems on the way.
More mistakes in National Lampoon's Vacation More quotes from National Lampoon's Vacation More trivia for National Lampoon's Vacation More questions & answers from National Lampoon's Vacation
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: Harold Ramis' voice can be heard as a member of the SWAT team telling Roy Wally, "Everything is wrapped up here" just before Roy decides not to press charges.
Question: Who voices Marty Moose?
Answer: Harold Ramis voiced Marty Moose.





Suggested correction: No they show he is never naked, absurd post.