Ben Kingsley and Mary-Kate Olsen Photo by: Dara Kushner / INF; Eric Charbonneau / WireImage
Ben Kingsley: Mary-Kate Was 'In Charge' of Make-Out Scene | Ben Kingsley, Mary-Kate Olsen
He's a screen legend – heck, he's even been knighted! But Sir Ben Kingsley isn't above a little kiss-and-tell when it comes to his on-screen smooch with 22-year-old Mary-Kate Olsen in The Wackness.

"She was completely in charge," the actor, 64, tells PEOPLE of their enthusiastic make-out scene in a telephone booth.

The former star of Gandhi and Schindler's List – who's currently shooting with Martin Scorcese in Boston – drove down to New York for the movie's Cinema Society and Sony Cierge-sponsored party at the Gramercy Roof Club.

"I love watching the movie," his wife, Daniela, said of the coming-of-age stoner film. As for her real-life leading man, she added, "I love him. He's amazing."

Writer/director Jonathan Levine said that although he was never a drug dealer, the film is loosely based on his own experiences growing up in New York. And even with this all-star cast, Levine still passed along a few valuable lessons.

Most notably? "I did have to teach Sir Ben how to take a bong hit."
This week's cover

On Newsstands Now!

JOSH & FERGIE: ROCKED BY SCANDAL

Did he cheat with a stripper?

Married less than a year, the couple denies an Atlanta woman’s claims that she and Josh had a fling
Note that this week’s cover of PEOPLE may differ regionally

Save $1.00 off this week's issue. Click here for coupon