I think this movie attempts something virtually impossible, and probably only a German filmmaker would be interested in this particular problem. Watching film is intrinsically exploitive. Often the cinematic exaggeration of entering personal space results in violence. What about this?
An intelligent exploration of this problem from the viewer's side is "Clockwork Orange." Therapy in that case is forced viewing of a movie, presumably the exploration from the filmmaker's side. This is that movie.
Because it is about itself, it enters into a conspiracy of awareness about itself with the viewer. The intruders wink at the audience. Just before the movie begins the phase where it starts to shape up as a movie, that intruder remarks on it not yet being a movie. At one point, the action is "rewound" to be replayed with a different outcome.
It is all very clear. But the challenge is not to remark on the problem, but to say something interesting or new or useful about it. That may be impossible, at least with normal narrative techniques, so this exercise is something of a waste.
The one interesting thing for me is the white gloves. Most commenters assume this is to avoid fingerprints, which goes against every motive we see. As it is the only noticeable costuming, one must conclude it is to denote the cartoonish element.
Ted's Evaluation -- 2 of 3: Has some interesting elements.