If you were looking forward to watching giant robots fight in space on the big screen, here’s some news that might sting a little. Amazon MGM Studios confirmed during its Upfront presentation that the long-awaited live-action Voltron movie starring Henry Cavill will skip a theatrical release entirely and premiere straight on Prime Video . The announcement caught many fans off guard, given the film’s epic scope and blockbuster-level cast. What is the Voltron live-action movie based on? For those unfamiliar, Voltron: Defender of the Universe is a beloved 1984 animated series that followed a group of pilots who commandeer five giant robotic lions that combine to form a colossal warrior robot called Voltron. The team uses this mighty machine to battle an intergalactic warlord named Zarkon and his army of monsters. Netflix It’s worth noting that Voltron has been successfully rebooted before, with Netflix and DreamWorks delivering an animated series that earned a strong following.…