Initially, Welles’ cinematic mind game about trickery feels deeply innovative and enthralling, leading the viewer through a rabbit hole of broken perception and ego with a train set of movie effects at his disposal. But as its scope becomes more fixated on two infamous forgers, Irving and Elmyr, the film gradually becomes a benign example of Welles’ own ego on display, a master filmmaker showing off for one final grasp at stardom. Fascinating, but frustrating as well.