The Watchmen is good, I especially like Rorshack. But the amount of full frontal male nudity in the film could have been cut down a lot.
Have you ever seen The Illusionist? Thats a good one.
I also can vouch for Gran Torino. Eastwood is great in it. And I also recommend The Wrestler. Its very surprising in how well it comes off, and its worth it just for seeing how in shape Marissa Tomei is as an exotic dancer.
If you are looking for good drama I would also recommend 'Doubt' with Philip Seymour Hoffman and Meryl Streep. Its a movie about suspected child abuse in a catholic school and it is very, very well done.
And in scanning the netflix top 100, here are a few other drama movies I recommend:
The Last King of Scotland. (Forest Whitaker is great as Idi Amin)
Man on Fire. (Denzel is awesome in this)
Mr. Brooks. (Kevin Coster is great as a psychological killer in this)
The Guardian (another Kevin Coster movie, kinda cliche' but still ok)
Charlie Wilsons War (Hoffman and Tom Hanks play off each other very well in this)
And although I am not really a Brad Pitt fan, 'The Curious Case of Benjamin Button' was oddly compelling and actually a fascinating story and also well done.