Blizzard doesn't have the resources to make a full length movie at that quality level. My understanding is that some of their big cinematics sometimes take near

Blizzard doesn't have the resources to make a full length movie at that quality level. My understanding is that some of their big cinematics sometimes take nearly a full year to produce. If they committed all of their artists to making a movie they wouldn't be able to produce any cutscenes for their games.