XML Flash ActionScript

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var movieList:XML = 
                                My favorite movies
                                
                                    Titus
                                    1999
                                    J T
                                
                                
                                    Rushmore
                                    1998
                                    W A
                                
                                
                                    Hall
                                    1977
                                    Woody Allen
                                
                           
;
        
        movieList.movie.(@id == 123).setChildren(null);
        trace(movieList.movie.(@id == 222).toXMLString());
        
        movieList.movie.(@id == 123).setChildren(Sleep +
                                                 2006 +
                                                 M G +
                                                 Romance);
        trace(movieList.movie.(@id == 123).toXMLString());
    }
  }
}