1080p高清
http://movietrailers.apple.com/movies/ifc_films/stillwalking/stillwalking_h1080p.mov
720p高清
http://movietrailers.apple.com/movies/ifc_films/stillwalking/stillwalking_h720p.mov
480p高清
http://movietrailers.apple.com/movies/ifc_films/stillwalking/stillwalking_h480p.mov
高清晰版
http://movietrailers.apple.com/movies/ifc_films/stillwalking/stillwalking_h640w.mov