Microsoft was aggressive in pursuing the idea of taking Halo to the big screen. It’s easy to understand why. The games, developed by Bungie Studios, were perfect blockbuster material: high-octane, intense sci-fi shoot ‘em ups with a dense mythology and storyline and a dedicated fan-base of millions. Combined sales of the first two Halo games grossed in excess of $600 million over four years, selling north of 13 million units. The movie biz looked on in envy.