Vince Vaugh's Father Gets a Cameo
When Trent and Mikey go into the Stardust casino, at the first table ($100) there are two women and an older man. The older man is actually Vince Vaughn's real father.
Homage to George Lucas
The licence plate on Trent's car is "THX 1138", a reference to George Lucas' first film. "THX 1138" could also be seen on a license plate in "American Grafitti".