Deliberate mistake: In the final scene when the four cars are driving away there is a road sign that shows how many miles it is to Chicago (where the main characters are from). In reality there would not be such a sign because there is not one direct route from Vegas to Chicago. A typical road sign would show the nearest cities.
Vegas Vacation (1997)
1 deliberate mistake
Directed by: Stephen Kessler
Starring: Chevy Chase, Randy Quaid, Ethan Embry, Beverly D'Angelo
Genres: Comedy
Factual error: After checking-in at the Mirage, Clark is sitting by his hotel room window admiring the northward view of the strip. Based on the view he must actually be sitting at the nearby Treasure Island hotel.
Hoover Dam Guide: Welcome everyone. I am your dam guide, Arnie. Now I'm about to take you through a fully funtional power plant, so please, no one wander off the dam tour and please take all the dam pictures you want. Now are there any dam questions?
Cousin Eddie: Yeah, where can I get some damn bait?
Trivia: This is the first film in the National Lampoon's Vacation series not to bear the National Lampoon name in the title, as well as being the first without John Hughes' involvement.
Question: What is the type of green dress that Audrey wears inside the shop when she looks in the mirror?