It was easier to find the differences between the movie "Troy" and the story the "Iliad". One of the differences that I noticed was that in the movie when the killing started to happen there was music to cover up the people yelling and screaming in the back round even though you can see what was happening to them. Another difference is when the end of the movie came Odysseus started to talk about how he wanted to be remembered that he walk with giants and fought with Achilles in the story it didn't have that, and even if it did it wouldn't be as dramatic you wouldn't be able to feel how Odysseus felt when he said it than just reading what he had said. A similarity is in the book when it describes how Achilles cuts Hectors achilles heel then puts the rope threw it and ties the rope to his chariot and drags him back to the Greek camp the way the book described it gave me the chills and in the movie even just thinking about it it gave me the same feelings when I read it in the book. Also I think that having music in a movie makes a big part in making you kind of feel whats happening, like you can tell if something sad be seeing it happen but if there's music its like you can feel it.