Roger Ebert calls it for Charlie Kaufman:
"Synecdoche, New York" is the best film of the decade. It intends no less than to evoke the strategies we use to live our lives. After beginning my first viewing in confusion, I began to glimpse its purpose and by the end was eager to see it again, then once again, and I am not finished. Charlie Kaufman understands how I live my life, and I suppose his own, and I suspect most of us. Faced with the bewildering demands of time, space, emotion, morality, lust, greed, hope, dreams, dreads and faiths, we build compartments in our minds. It is a way of seeming sane.A controversial choice, to be sure. Even I, who withstood many upbraidings and accusations of snobbishness after defending the film, wouldn't have put it at number one. Nevertheless, Ebert makes me want to see it again, though it seems likely that I'll have a hard time finding anyone to watch it with me.
This and his other top moves of the naughties here. Many questionable choices here (Almost Famous? Crash?? Good god.)