royal tannenbaums really does rule. if you liked it you should check out
Rushmore if you haven't already.
the first one that came to mind for me, was honestly
paranoid park. its an all around good movie, as a skater i think you're better able to connect with the emotions of the film than the skate imagery, since we see that all time. i think it really speaks to a certain kind of person, it definitely did to me.
in terms of documentaries
.. its a total mindfuck.. incredibly engrossing film even not just for documentaries.
of course
blade runner.... talk about a game changer, don't think i've been able to care about another scifi flick since seeing that.
you mentioned "higher planes of understanding of moving picture media".. that description perfectly sums up
Koyaansiqantsi.......doesn't get more 'art house' than this but its wicked good
idk, these came to my head from your use of 'change the game'. never thought about films thats way i suppose.