高清晰版
https://vf1.mtime.com/Video/2010/07/12/mp4/100712161851379962.mp4
1080p高清
http://trailers.apple.com/movies/independent/greatdirectors/greatdirectors-clip1_h1080p.mov
720p高清
http://trailers.apple.com/movies/independent/greatdirectors/greatdirectors-clip1_h720p.mov
480p高清
http://trailers.apple.com/movies/independent/greatdirectors/greatdirectors-clip1_h480p.mov