Celebs toasted the Tribeca Film Festival last night during a cocktail reception at the W Hotel in Hollywood. The event begins on April 20 in NYC, but stars including Malin Akerman, Dax Shepard, Anna Kendrick, and Kate Walsh got an early start to the celebration of independent filmmaking at the packed LA party. Malin's Bang Bang Club, which also costars Ryan Phillippe, and Kate's Angel's Crest will be among the first movies to screen at this year's fest. Yesterday evening also marked one of Justin Bartha's first public appearances since his split from Ashley Olsen, and The Hangover star was spotted catching up and laughing with friend Zach Braff inside the soirée. Zach will be a featured speaker at Tribeca this year, and fans can already start submitting questions for the Garden State director online.