"Wavelength" is and will always be one of the most controversial films of experimental cinema: the type of film that you either despise it or you consider it a masterpiece. From the ratings and reviews on IMDb, it is evidently the former is definitely common among most cinema goers, those who criticize it as being "boring"' "drudgery", "annoying", "unbearable", etc. Frankly, those claims cannot be directly pushed aside due to the truth that is in them: yes, to some forty-five minutes of a single scene would be the most intolerable thing on earth; indeed, for those with sensitive hearing, the sound would be enough for anyone to tear their hair out. But that does not mean it's bad. On the contrary, I believe Michael Snow was not a horrible, untalented filmmaker that tried and backfired to please audiences when he made "Wavelength", but deliberately attempted to be unconventional, boring and downright irritating. This was not the only film to fall in such a genre either; there were actually quite a number of unpleasant avant-garde films made around the sixties period, some even worse, that were intended to challenge the viewer in their difficult aspects.
The forty-five minute long work is a single scene of a room, experimented with using various color filters, slowly and gradually zooming in to a photo on the wall of the room. Very little occurs onscreen except for the zoom, and in many ways it is really a series of film variations on the only focal point. That's not to say there is no onscreen action though; traffic can be seen occasionally moving outside the windows of the room, several women enter early on whilst a Beatles song is played, and the climax is a series of loud banging noises--as though a burglary is happening offscreen--before the great experimental filmmaker Hollis Frampton enters the shot and falls dead to the floor.
One other reviewer has interpreted that the film's goal is that to have almost nothing happen the viewer gets to appreciate more what does happen, and this is a very good point. In either case, it is a very interesting and abstract experimental work, as well as the ending which does a quite literal turn on the title, and an absolute must for fans of experimental cinema. It's boring only if you look at it as a scene of a room; it becomes interesting when you delight in the moments of action and I really liked it because it kept my interest despite the lack of events. I found that when watching it it was not a painfully boring watch like many say, because after a while you accept nothing big is going to happen and let the movie play out as it is. To be constantly bored at a movie for an entire forty-five minutes is quite unnatural, at least for me.