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

Kieran Culkin has admitted he's the "naughty young actor" who once got Mark Ruffalo high during a play by replacing a prop ...

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

The story was brought up during an interview with Kieran Culkin and The Guardian, which recalled the incident as happening ...

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 a prop joint for a real one while acting in a play alongside Mark Ruffalo ...

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

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

Mark Ruffalo’s journey to the big screen was challenging—especially when it came to Zodiac. In fact, the actor who’d go on to become a beloved part of the MCU was once considered so ...

Kieran Culkin recalled the swapped-joint incident, which went down when he and Mark Ruffalo starred in the stage play 'The Moment When' together when the now 42-year-old Culkin was just a teen.