title: MPMoviePlayerController Bad Url Error
body: <p>If I give MPMoviePlayerViewController a bad video URL to play, like so:</p>
  
  <pre><code>[[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL URLWithString:@"http://badurl"]];
  </code></pre>
  
  <p>Is there a way to be notified that the video did not download?</p>
  
  <p>I tried both of the following, but was not notified in either case:</p>
  
  <pre><code>[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(loadStateChanged) name:MPMoviePlayerLoadStateDidChangeNotification object:nil];
  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
  </code></pre>