Corrected entry: In the "Director's Cut," Ptolemy implies that Alexander and Hephaistion died of typhus, which is transmitted by lice. He refers to what Hephaistion drank, so the cause is more likely to be typhoid. Historians believe that typhoid killed Alexander because waters of Babylon were, and still are, notorious for it.Rev.Erebus
Corrected entry: At the river Hyphasis, Alexander's troops refused to go any further. Their spokesman was a Greek nobleman named Koinos. Their cause was not defended by Krateros as depicted in the movie.
Corrected entry: Philotas was never involved in the so called 'conspiracy of the pages'. He was accused of conspiring against Alexander on his own and put to death in 330 BC. The conspiracy of the pages occurred in 327 BC, three years later.
Corrected entry: Cleitus did save Alexander's life once, but it wasn't at the Battle of Gaugamela as is depicted in the movie. He saved his life earlier, at the river Granikos.
Corrected entry: When Philip is teaching Alexander about Greek myths, he tells him that Herakles completed twelve labours, but was nevertheless struck with madness, with caused him to kill his children. That's turning things around. Herakles (or Hercules) was first struck with madness and in this madness he killed his children. To pay for this crime, he was ordered by the Oracle to complete twelve labours.
Corrected entry: At the scene where Alexander's army meets the Persian army (with Darius between them), we can see that they are in a desert. However the geography of Issos (where the battle took place in 333 BC) is not desert-like or an open field. It is a canyon.
Corrected entry: Right before his Babylonian governor is being murdered, Alexander examines some papers. They're written in an old style font, but after all, they're written in English instead of Greek or any language spoken in his army.
Corrected entry: In the movie, Alexander is referred to as a native of Greece. He was actually from Macedonia.
Corrected entry: Alexander's horse Bucephalus was not given to him as a child, but in 329, when he had already been in Asia several years. As the movie has it, the horse would have been nearly 20 years old when it was killed, very unlikely.