The movie theaters at the Howard hughes Center are very nice (stadium seating) and rarely filled. However, you have enough time to go just about anywhere you please. LA has many nice restaurants to offer and lots of good shopping areas as well. It all depends on your tastes and interests. The Getty Museum is nice but you can also find interesting exhibits at the LA County Museum (near Wilshire and Fairfax). Nearby there you will also find the Farmer's Market and the Grove which would easily provide enough time-killing entertainment for you.