Britney Spears had a mouth full of gum and put on a sparkly dress yesterday to attend the LA premiere of Toy Story 3. She posed with the film's stars like Woody and Buzz Lightyear, while nearby the actors who voice the characters like Tim Allen, Tom Hanks, and Michael Keaton stuck together. Brit brushed up on her Disney knowledge with a recent trip to their amusement park with her sons, Sean Preston and Jayden James, but it looks like her boys skipped out on the screening — they can, though, get a head start on the Summer blockbuster's fun with toys inspired by the movie. Brit was able to spend quality time with one of her main men this weekend, when she ran errands on Friday with Jason Trawick.