I don't really "hate" movies.
The only movies I really "hate" are the Charlie's Angels movies which I can't even stand to watch all the way through. Mostly, if I feel that I'm gonna hate a movie, I just never watch it (I.E.: Catwoman, Dreamgirls - I hate me some Beyonce - etc...)
Not really popular, I guess, but I really didn't care for Requiem For A Dream or Lost In Translation. I hate these "outside the box" directors who makes these films with absolutley no plot, or anything else, just for the sake of being different, as if being different automatically makes you better. Sorry, not gonna cut it. Sure, you got some nice acting performances, but seriously, come on, what the HELL was the point?
I agree that Napoleon Dynamite was grossly over-rated. I dunno if I even laughed once through that movie.
Other movies that I come close to hating:
-Blade 2
-Hellboy
(To this point, Guerillmo Del Toro is the WORST director I've had the displeasure of watching a film he made... although I haven't seen it yet, I will give him another chance eventually with Pan's Labyrinth. I hate Del Toro with a passion, but this film could possibly redeem him)
-The Shining
(Seriously, who does Kubrick think he is to absolutley BUTCHER this great story?!)
-Tombstone
(I don't -hate- it, but this is another film that, despite numerous attempts, I just cannot sit through the entire thing)