FilmMagic; Bill Davila/StarTraks
03/08/2012 at 06:00 AM EST
had some sisterly support at the afterparty for her new film Silent House
in the Big Apple. Big sis Mary-Kate
came to hang out at the Piaget-hosted bash held at the Stone Rose Lounge.
It was a young crowd inside, and the sisters spent their night at a VIP table surrounded by friends. While they never got up and danced, the ladies were enjoying the music spun by deejay Cassie Coane, who's a close friend of the Olsens, as well as conversations with each other. – Carlos Greer