Percussive Maintenance is the name of the video and its as brilliant as the video itself. I believe that hitting something and expecting to work is already deeply embedded in our DNA. There will be a time that doctors will use this method as a cure in the future, when bionics will be part of the human body.
This video is a set of movie clips (most of which you've seen) with people hitting gadgets to make them work. The sound is nicely used as percussion for the background music!
Sit down, watch in full screen and relax!