Kate Bosworth dressed up for the LA premiere of L!fe Happens, formerly known as BFF and Baby, last night at the AMC Theater in Century City. She had the company of costar Krysten Ritter, who also wrote the film, on the carpet. Krysten had lots of support as well — her costars from Don't Trust the B---- in Apt 23, including James Van Der Beek and Dreama Walker. Kate had the help of her stylist Cher Coulter and makeup artist Kate Lee in prepping for the cameras. Cher helped Kate pick out the yellow gown, which was from Prada. Kate's boyfriend Michael Polish wasn't able to attend the screening. She tweeted over the weekend that he's been busy putting the finishing touches on the movie which brought them together, Big Sur.