Mary-Kate Olsen has filmed a "full make-out session" scene with 63-year-old actor Ben Kingsley in their new film The Wackness.

The 21-year-old actress plays Union, a customer of a teenage drug dealer who swaps drugs for therapy sessions with Dr. Squires, played by Kingsley.

The odd pairing then get together and share a passionate kiss in the indie film, which the New York Post describes as a "full make-out session" between Olsen and the Drake and Josh actor.

It is the twin's first big screen part since she was seen in 2004 movie New York Minute alongside sister Ashley.