Kieran Culkin Admits He Swapped Mark Ruffalo’s Prop Joint for Real Marijuana When He Was 17: ‘I Thought This Was a Good Prank. I’m Stupid’

 Kieran Culkin Admits He Swapped Mark Ruffalo’s Prop Joint for Real Marijuana When He Was 17: ‘I Thought This Was a Good Prank. I’m Stupid’

Kieran Culkin has confessed. The star of “A Real Pain” and “Succession” admitted that he once swapped a prop joint for one spiked with real marijuana when he was cast in a stage production alongside …