高清晰版
https://vfx.mtime.cn/Video/2012/09/28/mp4/120928084720195045.mp4
流畅播放
http://player.youku.com/player.php/sid/XNDU1NjI3Nzk2/v.swf
1080p高清
http://trailers.apple.com/movies/paramount/paranormalactivity4/paranormalactivity4-tlr2_h1080p.mov
720p高清
http://trailers.apple.com/movies/paramount/paranormalactivity4/paranormalactivity4-tlr2_h720p.mov
480p高清
http://trailers.apple.com/movies/paramount/paranormalactivity4/paranormalactivity4-tlr2_h480p.mov