#1: Spirited Away
#2: Donnie Darko
Also well worth seeing:
Secretary
Far from Heaven
Adaptation
Fun but dumb:
Pirates of the Caribbean
Master and Commander
Once Upon a Time in Mexico
There were also many good films released this year that I didn't get to see at all. Bummer. I may have forgotten some too.
I'm partly listing these now rather than next week, in order to avoid having to rank 'Return of the King': I find it difficult to assess the LotR films. They have stuff in that irritates me, but they are quite a trip too.
Late edit: remembered 'Phone Booth'. Minimalist, interesting.