Init and playing MPMoviePlayerController returns black screen

I am trying to play an mp4 video under iPhone Simulator 5.1 using some sample code from Xcode. I created both MPMovieViewController and MPMovieController, supply a local path which contains the mp4 and add it as subview to my root controller. When I run it under iPhone Simulator, only back screen shown. I've tried a couple of suggestions of the same problem in SO but still it doesn't work. Here's the code: ``` NSURL *myURL = [[NSURL alloc] initFileURLWithPath:[[NSBundle mainBundle] pathForResource:@"VIDEO_CX75_01" ofType:@"mp4"]]; MPMoviePlayerViewController *moviePlayerViewController = [[MPMoviePlayerViewController alloc] initWithContentURL:myURL]; MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL: myURL]; [self presentMoviePlayerViewControllerAnimated:moviePlayerViewController]; [player.view setFrame: self.view.bounds]; // player's frame must match parent's [self.view addSubview: player.view]; player.view.frame = self.view.frame; player.initialPlaybackTime = -1.0; [player prepareToPlay]; [player play]; ``` Where I am doing it wrong? PS: I am on Xcode 4.3.2