You can’t use “surreal” or “Kafkaesque” without risking an eye roll, but it’s hard to describe “Infinity Train” without resorting to both. Intellectually mischievous, snarky, campy, animated and set in a perversely totalitarian dreamland, “Infinity Train” is about a 13-year-old girl who finds herself aboard a seemingly endless train on which each car contains a separate universe—a hero’s journey, Joseph Campbell might say. But the dreadful-looking train also seems like a silent shout-out to “Maus.” And the whole thing suggests a film by Luis Buñuel starring Rocky the Flying Squirrel.

It’s...