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"
Jim Rogash/Getty Images
Ethan Miller/ Getty
TIMOTHY A. CLARY/AFP/Getty Images
Yves Forestier/Getty Images
Stefan Gosatti/Getty Images
Joe Raedle/Getty Images
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!