When you launch a video and IMMEDIATELY press "Done" the MPMoviePlayerController will exit, however the video still plays in the background (you can hear the audio). It works fine if you allow the video to begin playing before you hit the "Done" button.
Does anybody know a workaround for this?
Try calling stop on your MPMoviePlayerController instance when the view controller that spawned the movie receives its viewDidAppear: (or viewWillAppear:) methods
While, so far, I've also found MPMoviePlayerController somewhat erratic, I imagine just releasing the object (after listening to a MPMoviePlayerPlaybackDidFinishNotification) would help.