流畅播放
http://player.youku.com/player.php/sid/XNDM0NjA0MjE2/v.swf
1080P高清
http://videos.hd-trailers.net/paranormalactivity4-tlr1_h1080p.mov
720P高清
http://videos.hd-trailers.net/paranormalactivity4-tlr1_h720p.mov
480P高清
http://videos.hd-trailers.net/paranormalactivity4-tlr1_h480p.mov