Pop Quiz: Hollywood's Biggest Pranksters

Spend your April Fools' Day with Ashton, George and the rest of Hollywood's mischief-makers. By Jonathan Stern

  • During the filming of Ocean's Twelve, notorious prankster George Clooney put unflattering bumper stickers on pal Brad Pitt's car. What did they say? | Brad Pitt

CREDIT: Splash News Online

Published: Tuesday April 01, 2008 06:00 AM EDT

During the filming of Ocean's Twelve, notorious prankster George Clooney put unflattering bumper stickers on pal Brad Pitt's car. What did they say?