VIDEO: New Warcraft trailer still looks silly
Above and beyond that, you also need the time and the drive and almost boundless imagination to add the neccessary detail to make this fantastical realm come to life. If that's missing, the films will suffer - just witness the difference between Peter Jackson's Lord of the Rings and Hobbit series.
So any new fantasy property already has the deck stacked against it, with everything apart from Jackson's epics falling by the wayside in recent years. Well it's time to try again with Warcraft.