Post Tenebras Lux is a film rich with sheer material presence, making good on Reygadas's apparent intention to make the viewer truly feel the audible and the visible, but his pictorial gimmickry can only do so much aesthetic heavy-lifting.
Moviegoers beholden to clean narrative may feel they need their own explanatory GPS and audio guide. But the richer reward lies in allowing oneself to be led by this gifted director's instinct for lyrical, sensory exploration.
If greeted with enough openness and interest, Post Tenebras Lux's seemingly incoherent string of scenes reveals itself as a carefully executed emotional structure that begs for, and rewards, repeated viewings.
The film is never less than fascinating, but it appears to be so intensely personal as to be all but indecipherable to viewers not personally acquainted with the filmmaker, or at least in possession of the press kit.
The film does come across as an evidently sincere attempt to create a new kind of cinema, but opinion will certainly vary on whether Reygadas really does offer, as his title suggests, light after darkness.