I have a code that was working before iOS 7, and after update movies are not playing:
-(void)setMovie:(NSURL *)newMovie autoPlay:(BOOL)autoPlay
 {  
  movieView_ = [[MPMoviePlayerViewController alloc] initWithContentURL:newMovie];
  [movieView_.view setContentMode:UIViewContentModeScaleAspectFit];
  [movieView_.moviePlayer setShouldAutoplay:NO];
  movieView_.moviePlayer.view.frame=self.view.frame;
  [movieView_.moviePlayer setControlStyle:MPMovieControlStyleFullscreen];
  [movieView_.moviePlayer setMovieSourceType:MPMovieSourceTypeFile ];    
  [movieView_.moviePlayer prepareToPlay];
  id currentPhotoView = [photoViews_ objectAtIndex:currentIndex_];  
  [currentPhotoView addSubview:movieView_.moviePlayer.view];
  [movieView_.moviePlayer play];      
}
Don't know, what is the issue and the application is not crashing.