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." ...

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 revealed himself as the “naughty young actor” who was responsible for getting Mark Ruffalo and other co-stars high during a Broadway production of The Moment When.

"As we move into 2025, let’s lean on community, kindness and hope — and remember that rest is necessary for the road ahead," the actor wrote Mark Ruffalo/Instagram For Mark Ruffalo, kindness ...

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 confesses to getting Mark Ruffalo and their co-stars high on stage during a 2000 production of James Lapine's 'The Moment When'. Joe Maher/Getty Images for BFI/Monica Schipper/Getty ...

Kieran Culkin admitted that he once tricked Mark Ruffalo and other co-stars into getting stoned during a live theatrical performance. Since only one joint was smoked each night, it was anyone’s ...

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

Kieran Culkin, 42, opened up in a recent interview with The Guardian about getting Mark Ruffalo, 57, high while they were in a play together by swapping a prop joint for real-life marijuana.

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