Reese Witherspoon showed up smiling on the set of Four Christmases Friday in LA. See, no trouble here between costars! None at all! She's busy these days with her family, movie making, and Avon ambassador duties — no wonder she grabbed her lunch to go. At least Reese realizes that she has it easier than a lot of the working moms out there, although she still wishes she could spend more times with adorable Ava and Deacon. On set her hair was in a casual bun, which is just about the most exciting updo we're going to get to see from Reese this weekend with the lack of Golden Globes. At least it's something?