You might have heard by now that George Clooney is going to be working in St. Louis later next year (as in a few weeks from now), on a movie called Up in the Air. At least someone will be working in the city during what's projected to be a nasty first quarter. Want to be a part of the movie? Here's How.All signs point to this film being a big deal by St. Louis movie standards, with Juno director Jason Reitman directing and the filming expected to last about five months in St. Louis.The plot goes