Sam Raimi's multi-million dollar budget remake of Sam Raimi's Army of Darkness (1992).
Really though, all I could think of when watching this movie was how similar it was to Army of Darkness. And it didn't help that Sam Raimi directed it and Danny Elfman scored it. Not to mention Bruce Campbell even makes a cameo.
A false savior falls from the sky and seemingly fits the prophecy of the Wizard who will come and save the towns people from evil forces just to be revealed as no more than an average man pretending to be something more to benefit for his own greedy needs. But it may turn out he's the man the Land of Oz needed after all...
Watch this movie, you'll see what I mean.