流畅播放
http://player.56.com/v_OTU1NDIzNDI.swf
1080p高清
http://movietrailers.apple.com/movies/independent/americanpromise/americanpromise-tlr1_h1080p.mov
720p高清
http://movietrailers.apple.com/movies/independent/americanpromise/americanpromise-tlr1_h720p.mov
480p高清
http://movietrailers.apple.com/movies/independent/americanpromise/americanpromise-tlr1_h480p.mov