Succession’ star revealed that he switched prop joints for the real thing while starring in an off-Broadway production when ...

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

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

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

Kieran Culkin has admitted that he once swapped Mark Ruffalo's prop joint for real weed during a stage production in 2000.

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

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, of course, is Macaulay Culkin's younger brother, and even appeared in Home Alone in 1990 in a small-ish role. Recently, Culkin admitted to getting Mark Ruffalo stoned as "a prank." ...

Among the many memorable speeches at the Golden Globes last night, Kieran Culkin’s stood out after ... in a new interview that he once got Mark Ruffalo high on stage, when he swapped out an ...

Now Culkin has been branded 'unhinged' for his red carpet interview ahead of tonight's Golden Globes. Chatting with an Entertainment Tonight presenter, Culkin questioned her about the notes she had on ...