Where there's smoke...there just might be an angry stage manager.

Mark Ruffalo would have no choice but to go method for a particular night of performing on stage thanks to Kieran Culkin's ...

Kieran Culkin has revealed himself as the “naughty young actor” who was responsible for getting Mark Ruffalo and other ...

Kieran Culkin has come forward as the culprit who got Mark Ruffalo high during a performance of The Moment When more than two ...

With a stash of prop joints backstage, Culkin couldn’t resist the temptation to swap one out. “Uh-oh. I believe it’s happened ...

Kieran Culkin has admitted that he once swapped a prop joint for a real one while acting in a play alongside Mark Ruffalo ...

Kieran Culkin admitted that he once tricked Mark Ruffalo and other co-stars into getting stoned during a live theatrical ...

Kieran Culkin is coming clean about the prank he played on Mark Ruffalo 25 years ago. The A Real Pain actor, 42, revealed in ...

After Mark Ruffalo said a "naughty young actor" once got him high on stage when switching a prop joint for the real thing, ...

Kieran Culkin recalled how he swapped a prop joint with real marijuana while pulling his prank on Mark Ruffalo ...