Cocos2d: How to play a video in the background of a CCLayer - cocos2d-iphone

Question

I want the video play in the background, and the text label in the front, run the following code, video is playing, but text label does not show!
-(id) init {
if(!(self=[super init])) {
return nil;
}
CGSize size = [[CCDirector sharedDirector] winSize];
// MP4
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"test" ofType:#"m4v"]];
moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:url];
[moviePlayer respondsToSelector:#selector(setFullscreen:animated:)];
moviePlayer.controlStyle = MPMovieControlStyleNone;
moviePlayer.shouldAutoplay = YES;
moviePlayer.repeatMode = MPMovieRepeatModeOne;
moviePlayer.view.frame = CGRectMake(0, 0, size.height, size.width);
[viewController.view addSubview:moviePlayer.view];
[viewController.view sendSubviewToBack:moviePlayer.view];
// create and initialize a Label
CCLabelTTF *label = [CCLabelTTF labelWithString:#"Hello World" fontName:#"Marker Felt" fontSize:64];
label.position = ccp( size.width /2 , size.height/2 );
[self addChild: label];
return self;
}

Answer 1

I found the answer:
First in AppDelegate.m replace kEAGLColorFormatRGB565 with kEAGLColorFormatRGBA8, Second, as the following code, the last 4 lines is important:
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"video" ofType:#"mp4"]];
_moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:url];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(moviePlayBackDidFinish)
name:MPMoviePlayerPlaybackDidFinishNotification
object:_moviePlayer];
[_moviePlayer respondsToSelector:#selector(setFullscreen:animated:)];
_moviePlayer.controlStyle = MPMovieControlStyleNone;
_moviePlayer.shouldAutoplay = YES;
_moviePlayer.repeatMode = MPMovieRepeatModeOne;
_moviePlayer.view.frame = CGRectMake(0, 0, 300, 300);
UIView* glView = [CCDirector sharedDirector].openGLView; // attention
[glView.superview insertSubview:_moviePlayer.view atIndex:0]; // attention
glView.opaque = NO; // attention
glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // attention

Answer 2

CCVideo player in one of the best options to play video in cocos2D project
[CCVideoPlayer setDelegate: self];
[CCVideoPlayer playMovieWithFile: #"bait.m4v"];