B Movie Bonanza

Seriously. It's not even a case of "so bad it's good," although it is far from objectively a good movie. It's just... fun. It's a B movie, done to excellence. You get what you came for.

Edit: I can't stress enough how good this movie is. Is the chief bad guy Hitler? He really seems like he's Hitler. Is that why the rapist has a random swastika painted on the front of his World War 1 army helmet? Why does maybe-Hitler consistently wield a bazooka in situations where it's not the appropriate weapon? You'll have to watch to find out. The answer to all is "because it is awesome." It also has an absolute commitment to perfection to the Chekhov's gun principle. Every time some character says some random thing, like when they're clearly on a tiny pacific island and he calls the Pacific Ocean "the lake," there's a reason for it and there will be a payoff later.