As a movie setting, Las Vegas gives a filmmaker license to do whatever the hell he wants. Which means that the “Vegas movie” has birthed a legion of wacky, outlandish, and mind-bogglingly over-the-top moments. The Hangover, the subgenre’s latest proud inductee (out today), does not disappoint: Missing teeth! Tigers! Mike Tyson air drumming to “Something in the Air” "In the Air Tonight"! (And that's all before you get to the credits.) Here are ten of our other favorite insane Vegas-movie moments.