I saw that Troy trailer (available on the website) when I saw the Matrix. The opening of the trailer is almost a "Star Wars" intro moment where you just spellbound by the scale of something.
I am still waiting for a movie that captures the sheer scale of a large battle. Imagine for example if in a scene in Saving Private Ryan then had done an overhead scan of the entire Normandy beachhead during the initial assaults? Or an American Civil War battle where 100,000+ men (not 2000 re-inactors shot from different angles) are engaged in a battle like Gettysburg. Or the Battle of Kursk!

Jim