Two different ones, that is. 

There Will Be Blood is a terrific film.  I'm a huge Paul Thomas Anderson fan, having sat through all three hours of Magnolia without a bathroom break at the Barbican and not even laughing when they all burst into song.  I think he's a rare genius, and There Will Be Blood is excellent. 

I'm going against the extremely-tasteful-cinephile stream here, but I don't think it's quite as good as No Country For Old Men.  Movie geeks like to play oneupmanship even more than sci-fi bloggers, so now that everyone really likes No Country, it's far cooler to prefer There Will Be Blood.  And I'd love to, but I gotta say I was more affected by No Country.  Being popular and recognised is by no means a guarantee of quality, but that doesn't mean it's automatically average, either.

And I've now seen the trailer for Wong Kar Wai's My Blueberry Nights twice now, and I've got to say the trailer is so poor, it looks like a spoof.  Wong Kar Wai is amazing, world-class.  The trailer for My Blueberry Nights makes him look like Joel Schumacher trying to be arty.  It's that bad.  Must get a re-edit.