Rachel Bilson, Kate Bosworth, Vanessa Bruno

Kate Bosworth, Rachel Bilson and Molly Sims celebrate the first birthday of Vanessa Bruno's Melrose boutique; Antonio Banderas helps Pedro Almodovar launch his new Taschen book; Gus Van Sant steps out for a cocktail to support a fellow filmmaker at The Grill; C.C. Sheffield DJs a party at Dolce & Gabbana—it was an another eventful Wednesday here in L.A., get all the details in today's edition of Last Night's Parties.

[Photo via Wireimage]