"The Incredible Burt Wonderstone" features a deep cast of comedic all-stars and a premise with tons of potential (think "The Prestige" but funny). Yet somehow it lands with a sickening thud, like a magician's guillotine trick gone horribly wrong. It's certainly not incredible, and the only wonder to be found is in wondering why a comedy with massive promise resulted in such an inconsistent amount of laughs.