In this uproarious tale of what it is to make movies, we get to explore, at close range, finicky directors, clueless executives, shameless marketers, famous actors, battered screenwriters, and hapless producers crossing paths in such calamitous ways that it's a miracle these films get made at all. Whether he's trying to persuade an executive that Gwyneth Paltrow has enough chin to carry the lead in a movie, forcing an enraged Alec Baldwin to shave...