Keira Knightley arrived from a flight at LAX and headed out to a waiting car with her bag yesterday. She's on the West Coast after a stint in NYC, where she showed off Anna Karenina ahead of its November release. Keira's most recent press stop took her to Late Night With Jimmy Fallon on Monday, when she tried her hand at playing instruments with Dave Matthews against Jimmy and Michael Bublé.Keira and Matthew lost to Jimmy and Michael in the fun musical game. Keira's been hard at work with promotions and is prepping for her role in Jack Ryan, but she also has a wedding to look forward to. She and boyfriend James Righton announced their engagement in May, and she shared that she's just starting to look into wedding planning.