in my opinion documentary rely on the subject matter more than how the film be shoot . to say the least robert crumb be an interesting character and which make this an interesting documentary . i have no previous knowledge of him and so i sit down and watch it . a few minute in and my first impression of robert be he be a quirky cartoonist . nothing special . the film roll on . be someone who can not even draw dog poo if i be give a brown crayon and a piece of paper i be immediately envious of the ease he seem to draw with . the talent do not stop with robert and i be equally amaze with his brother exploit with the pen . fast forward to the end . i tell my friend i saw this amazing documentary . they ask me what it be about . i say a guy draw cartoon . blank look oh didn not quite give the doco justice . the premise of this doco be about a guy draw cartoon and but where this doco excel be the exploration of the depth of the human psyche with such brutal honesty . this film explore the stuff that be a far back in the human consciousness that you do not even want to know be there . it be absolutely fascinate the quirky and humorous interplay between the brother and how they have evolve or de evolve from their childhood interaction to adult life . all brother sit on the line of the full circle of sanity that meet around with insanity . one of the most interesting thing i have see .