Rachel Bilson donned a head-turning Oscar de la Renta dress for last night's premiere of The To Do List in LA. She walked the carpet hand in hand with her costar, Calvin Klein-clad Aubrey Plaza, and they were joined by the film's funny men Bill Hader and Andy Samberg, as well as their director Maggie Carey, on the red carpet. All eyes seemed to be on Rachel for her glamorous getup that was not accompanied by the fake neck tattoo that she was sporting at LAX last week. Rachel and crew stepped out to debut their Summer comedy on the West Coast ahead of its release on Friday. We got to sit down and chat with Aubrey and Maggie about the memorable sex scenes captured on film for the movie, which follows the story of an inexperienced upcoming college freshman's sexual to-do list before hitting campus.