After reading Alexander of Macedon by Harold Lamb (which is essentially a biography) I can say from what they portrayed, it was relatively similar to the biography. They obviously missed huge events in the movie like the Seige of Tyre and others, but what they were displaying turned out rather well in my mind. I wasn't expecting the best movie ever, but in general it was very similar. He was a Macedonian who fell in love with the Greek culture and then later, much more so, to the Eastern culture. In doing that I believe he became the epitome of what he desired; everyone to accept and appreciate everyone else's cultures.