When Nikolaj Arcel’s film is at its best, it does harness this mixture of genres, suggesting that there’s a fascinating world for audiences to explore. The realm of Mid-World contains derelict versions of technology from our world, but with a society that seems more like a 19th-century American frontier settlement, only equipped with electricity and futuristic capabilities like teleportation. Frustratingly, just as viewers are getting interested, the film has its characters travel to Manhattan, where a series of rote story beats plays out: the hero is injured and fortuitously healed before the final fight; the hero has a falling-out with his companion, only to bond over a shared experience; the hero stops a world-destroying space laser with a few well-placed, slow-mo bullets.