iOS 4.3 causes black screen (4.0-4.2 was fine) - MPMoviePlayerController at fault?

I've made a game that uses cocos2d to display graphics, and uses a lot of MPMoviePlayerController to display cutscenes.

The problem is - the game stopped working on iOS 4.3. It was fine up until iOS 4.2, but 开发者_开发技巧on iOS 4.3 the movies play OK, the gameplay also happens, but the screen is all black when not playing the movies.

I have a hard time tracking the problem. Suggestions?

Edit: I narrowed the thing down to MPMoviePlayerController - if I disable it, everything is fine. I guess something changed in 4.3?

MPMoviePlayerController's view is clear in 4.0-4.2, and black in 4.3 by default, what helped was:

MPMoviePlayerController* moviePlayer = ...
moviePlayer.view.backgroundColor = [UIColor clearColor];

MPMoviePlayerController* moviePlayer = ...
[moviePlayer.backgroundView setBackgroundColor:[UIColor whiteColor]];
// or set need color

read more in "MPMoviePlayerController Class Reference"