definitely fake
look @ 1:18
his body shrinks at first, then unnaturally accelerates in a parallel motion..
1. he opens the door, cut.
2. remove him from door, actor moves out of the cameras eye, and by the locker start filming,
3. blast little peanuts, pull strings on bookshelf and lamp to make them wobble.. have actor stand up
edit it together
right after 2.) super impose a blurred body, and try to make it line up with the angle of the cannon (which it doesnt) and have the object shrink with distance to mimick motion and it all comes together...