Well, to be fair to "Troy", it has been proven that the Trojan War really did happen, and the film, itself, was the filmmakers' theory of how it could have happened in real life.
Oh yeah, Odysseys was definitely a cool hero. Granted, I didn't like him much in "The Iliad", but he became more sympathetic in "The Odyssey". Man, piss off one water god, and, well... <_<