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.
Factual error: The club where Vicky works is advertised as being located on the strip but is actually on Paradise Rd. across from Hard Rock.
Factual error: Rusty couldn't take possession of the cars without paying for tax, title and license fees. They wouldn't be sitting at his hotel ready to drive away.
Suggested correction: Maybe he did all that with his fake ID and casino winnings off screen?
Factual error: On Marty the blackjack dealer's name tag, his hometown is spelled out 'Masellon, OH'. It should be 'Massillon'. (00:56:10)
Factual error: Near the beginning, it's clear we're in Chicago because we're hearing a Chicago radio station. Clark turns the corner before nearly running into people in the road. You can see mountains in the background very briefly. The Griswold house was one of the properties on the Warner Brothers Ranch in Burbank, California which has since been demolished.
