It’s … it’s … Atragon (1963). Whee.
This is not a plot free movie, but it’s not something to get the audience fired up. There’s a missing Japanese submarine captain, his long-retired Admiral, the captain’s daughter, the usual gaggle of reporters, the evil Mu Empire and their God-creature Manda, which is unusually ineffectual. The submarine captain has his brand-new, self-developed submarine, which might be named Atragon, which not only cruises the ocean’s depths, equipped with a freeze ray, but also, ah, flies.
And it’s all very awful.