WHAT SHE WORE: Rachel Bilson in star print silk dress in Cannes on May 20

WHO: Rachel Bilson walking along La Croisette with her boyfriend Hayden Christensen at the 2013 Cannes Film Festival on May 20th 2013
WHAT SHE WORE: star print silk dress from Isabel Marant with simple black jacket
BUY: Isabel Marant 'Melissa' star printed dress at shops below

photo source: just jared