Sandra Bullock and a friend brought her son Louis to check out Thomas the Tank Engine at a park in Fillmore, CA, over the weekend. The little guy got to pick out some souvenirs, which his mom Sandra carried while Louis hitched a ride with her friend. Sandra has been focusing on Louis since wrapping production on her next movie Gravity. She costars with George Clooney in that film, which they shot in London and is expected in theaters later this year. Sandra has yet to sign on for anything else at the moment, and is spending all her time on Louis's daily school runs and his busy social schedule in LA.