I know I'm probably alone on this, but I really(!) like "The Four Feathers". It's actually the first Heath Ledger film I saw (only just recently saw most of his other films - "10 Things I Hate About You", "A Knight's Tale", "The Patriot", "Ned Kelly", "The Order", "Lords of Dogtown" and "Casanova"). Saw it on a plane and really only because of Wes Bentley (loved him American Beauty!). I was stunned by Heath in it and it hasn't stopped since. I came to know about BBM through Heath.
Close second or equal is "Monster's Ball"..
Haven't seen: "Brothers Grimm", "Candy" and "Two Hands" yet.
~ j U d E