In this comedic documentary, Johnny Knoxville heads a crew of stuntmen, skateboarders and all-around lunatics as they prank, embarrass and torture each other in the name of fun. The antics range from childlike — the boys don panda suits for a romp through Tokyo — to grotesque and life-threatening. A golf cart demolition derby turns downright dangerous. Live gators nearly chomp maniac Steve-O. Filmmaker Spike Jonze and Knoxville, in heavy makeup, test the public’s patience for the elderly.