Culkin and Ruffalo shared the stage in Playwright Horizons' 2000 production of James Lapine's "The Moment When." ...

Kieran Culkin has confessed. The star of “A Real Pain” and “Succession” admitted that he once swapped a prop joint for one ...

The actor responsible for getting Mark Ruffalo high on stage during an off-Broadway play reveals himself: Kieran Culkin cops ...

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

In a new interview with The Guardian, Kieran Culkin makes a point of saying that he doesn’t do drugs and never has—with one ...

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

Mark Ruffalo revealed how he handled being pranked by Kieran Culkin - who swapped a prop joint for a real one - on the ...

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

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

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