Costars Diane Kruger, January Jones, and Liam Neeson came together for the premiere of Unknown in LA last night. Joshua Jackson supported Diane, following their sweet Valentine's Day, which Diane revealed they rarely get to spend together. January also got in the Valentine's mood with Jimmy Fallon. She wore an Alexander McQueen dress with Louboutin heels: FabUK wants to know what do you think of her outfit? Diane's been promoting her movie with interviews in GQ and Glamour. Unknown is one of several great films out this month, and the gang was joined by Susan and Robert Downey Jr plus Kim Kardashian and Kris Jenner at their premiere.