I wasn't as impressed by Mann's latest as I thought I would be, but then I was a bit distravted while watching it (ahem ), and like arsaib points out, a bit overwhelmed by its formalism. Subsequently it has grown in my memory and I'd love to see it again. 

Interesting selection of runner-ups. As usual, I haven't seen nearly as many films in 2006 so I have a lot to look forward to 

Hopefully I'll come up with a better listing method for 2007. If I look at my own lists, they look quite crowded and messy; I always want to pack in as much as possible