Matt Damon wouldn't let a little arm injury stand in the way of a pre-Christmas outing with his kids. The actor took his children out to dinner at Toscana in LA's Brentwood neighborhood on Sunday while sporting a rather serious-looking sling. It isn't clear how Matt injured his arm, but it probably wasn't from a movie set, as he has wrapped up most of his acting projects for the year. However, Matt has been very busy working out production deals on new TV shows and movies with his best friend and business partner, Ben Affleck. The dynamic duo recently signed on to produce a new spec script from Matt's former writing partner and costar John Krasinski. There are few details about the new project, but it will be a good reunion for Matt and John, who cowrote and costarred in The Promised Land last year.