Books and films have skewered Hollywood's excesses, but none has ever portrayed one man's crazy vision of the future of big action/adventure films as The Extra does. As over-the-top as Mel Brooks's Blazing Saddles, as savagely dark as Robert Altman's The Player, and more violent than Rollerball, this is the story of the ultimate, so-insane-it-could-only-happen-in-Hollywood formula for success, a brave new way to bring...