Super B is on the right track. With motion picture film cameras, the speed of film, the angle of the rotary shutter, the rate that the film is moving past the shutter, and phase/timing of the film moving past the shutter can affect the look of the motion image. In this case, it was probably shot on 16mm film in low lighting with a fixed shutter, so it doesn't suprise me that it has a choppy or sped up look to it. If a camera's sync motor isn't functioning properly, the rate at which the film is movng past the shutter can vary - giving it a sped up/slowed down look. You'll notice that around 0:06, the sync of the image and sound are slightly off - evidence that this might be happening.
But let's face it - there are a lot of people out there that can play fast as lightining. So it's not like were witnessing something that is impossible to play. Just don't ask me to play it....I'll have to speed the camera up for that!
Great video.