Great Western; great movie; and even though going into it you know exactly which members of the crew guarding Russell Crowe are not going to make it to Contention, the way they go (with one exception) is a total surprise. (The exception is the one character who declares "Look at what I just did!" and immediately gets shot -- cf. Serenity.)
But make sure you stick around for the credits. Whenever Russell Crowe's name is supposed to show up (outside of the cast list), the name "Ben Wade" is inserted (as in Dialect Coach for Ben Wade; Personal Assistant to Ben Wade).
I wonder which one of the producers pissed off Crowe so much that he had every credit except his cast appearance changed to his character name . . .