"My general idea was to take the soul of Cheech and Chong and all those famous potheads and infuse them into my character," he explained.
Taking bonghits for inspiration was a moot point for Kingsley, too, who has become allergic to smoke since he quit cigarettes seven years ago. The herbal ones he toked onset in lieu of real joints didn't help.
"I coughed my head off," said the actor, who traveled three hours from the set of Martin Scorsese's flick "Shutter Island" just for the after-party at the Gramercy Park Hotel (and had to return in time for a 6 am call the next day).
Meanwhile, co-stars Olivia Thirlby and Mary-Kate Olsen, Zoe Kravitz, Trish Goff, Rufus Albemarle, Helen and Tim Schifter and Marina Rust nibbled mini burgers and sipped Champagne on the roof deck.