The Assassination of Jesse James by the Coward Robert Ford (2007)
(Recommended by MattG12. Thanks.)
I really enjoyed this movie, which was quite different from most westerns. Not really a shoot-em-up action adventure. Psychological character studies of outlaws, filled with tension and drama. Grand scenery and noir photography, though.
In my opinion, any movie over two hours is too long, but the scene of Nick Cave singing in the bar was worth waiting for.