That is a pretty sweet video if it's real!
Cool little video. I would like to know a little bit more about the shot and location just to rule some little things out.
On the web site if you click on "schedule" there is a link to the library where the video was shot. There is a picture of the library on that link in the upper left corner. It looks like a house more than a library.
I right clicked the video and slowed it down and then paused it
when the thing appears. When slowed down it sort of looked like it could be a headlight of a car coming down the street, shining in the window in the other the room as it approaches, and appearing on the door frame as it passes by.
That may not be what it is but that is what it reminded me of. The video is too dark to tell what is on that side of the room.