Mary-Kate Olsen is starring in the movie The Wackness and has decided to dish on her kiss with Ben Kingsley in the movie. (Which is ewww when I think about it…)

“We shot it at three o’clock in the morning and so everyone was a bit delirious anyhow,” Olsen, 22, tells the Wall Street Journal about working with the 64-year-old Gandhi Oscar winner.

The heavy smooch takes place in a phone booth – but the two did anything but phone in their performances. “He was so professional about it and made me feel so comfortable,” she says. “He said, ‘Anything you don’t feel comfortable about, let me know. You lead me.’ “

Ewww, ewwww, ewwww!!

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