Mary-Kate Olsen: Holy Rollers!!!

Mary-Kate Olsen comes out to support her (possible) future brother-in-law at the premiere of his new movie, Holy Rollers, at Landmark’s Sunshine Cinema on Monday night (May 10) in New York City.

JustJared.com can confirm that MK‘s twin sister Ashley was at the premiere but decided to skip out on the carpet (pictured below). Premiere goers hit up the after-party at NYC hotspot Avenue.

Watch the trailer at HolyRollersFilm.com!

15+ pictures inside of Mary-Kate Olsen at the Holy Rollers premiere…