Vastly bloated beyond its own capabilities to handle. To write and make a single movie cover the globe bestriding shoes of Alexander the great is hard enough but stone seems completely out of touch and fails to grasp it utterly. Colin Farrell could look like Alexander the great though his nose is far too weak compared to Alexander's strong nose as depicted by contemporaries in the Alexander mosaic, Alexander was also not blonde and most likely tanner with suspected heterochromia; aside from those obvious historical inaccuracies in appearance Farrell's acting is on the right track but again like much in this movie, falls short to grasp at the breadth, depth and most of all complexity that a person such as Alexander probably was.
The only saving graces in this absolute mess of a movie are the fact that Stone at least attempted to showcase the ideas behind who this person was. The complexity and the emotional instability present in someone who was insecure and wounded by his childhood, adrift from his father and traumatized by his mother; someone haunted by his past who was seeking glory and a "home" in the hollowness where his childhood once lay. This depth of character is the right step.