As "The Hangover III" hits theaters, where we're likely to see another Mike Tyson cameo, take a look at some other celebrities who have made memorable cameos on the big screen.
Mike Tyson – "The Hangover"
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
Bill Ebbesen/Wikimedia Commons
Celebrity may seem like a young person's game, but there are many celebrity senior citizens still out there working who would beg to differ.