The makers of Colin Farell's upcoming epic 'Alexander' are facing the threat of lawsuit for claiming warrior Alexander the Great was bisexual.A group of furious Greek lawyers insist the legendary conqueror was heterosexual, and now they are looking into suing film studio Warner Brothers and director Oliver Stone for claims to the contrary.Yannis Varnakos, the spokesman for the 25 lawyers, says, 'The production company should make it clear that this film is pure fiction and not a true depiction of the life of Alexander.'The group of attorneys say they have gathered enough evidence so far to know that there are...