Park City's Eccles Center had a surprise guest for Monday night's premiere of "Son of Rambow," a British film about a kid filmmaker inspired by the first "Rambo" movie: Rock star and world humanitarian Bono, who slipped in through a separate entrance shortly before the film started.

The U2 singer showed up without an entourage and killed time before the film hanging out in a back hallway, helping Sundance volunteers work on a jigsaw puzzle. To avoid causing a stir he snuck into the theater after the movie started, then slipped out at the end before the lights came up.

No wonder his presence in Park City went largely unnoticed by the media -- until now, that is.
-- Brandon Griggs