Crashing follows the story of a New York comic Holmes who is forced to make a new start for himself after his wife leaves him - Watch the official trailer below! Katy is wearing a Cinq Ã Sept gown and Stella Luna shoes.
Lily is wearing a Valentino dress and Harry Winston jewelry.
Fellow celebs and , , and wife along with and husband also hit the red carpet for the premiere.
Also in attendance were and wife , and Tilda's partner , who was a co-producer on the film.