流畅播放
http://player.youku.com/player.php/sid/XNDU0NDI1MTE2/v.swf
1080p高清
http://trailers.apple.com/movies/independent/naturecalls/naturecalls-tlr1_h1080p.mov
720p高清
http://trailers.apple.com/movies/independent/naturecalls/naturecalls-tlr1_h720p.mov
480p高清
http://trailers.apple.com/movies/independent/naturecalls/naturecalls-tlr1_h480p.mov