As the title points out a study into film and as the label 'dada' points out a glimpse way farer into the relation between the work of art, meaning and the viewer.
Besides that, on a technical level incredible, a dedication to the medium of film and an experiment into it, that looks for equals among what I've seen so far.
Less the transubstantiation of a dream onto celluloid than a cross-section of dream under microscope, presented with the terse formality of a lecturing professor: "Watch as familiar objects undergo mutations along plausible lines of logic - eyes are heads are circles - till the dreamer's reasoning is lulled. Now pure abstraction has free reign! Temporarily. Till the process reverses itself..." Not bad for 4 minutes!
All Richter's films I've seen are really about rhythm - this is no exception. This is not as monolithic as his earlier studies, there are more than just abstract geometrical shapes. Visual music at its best!