This article contains spoilers for "Superman." By now, plenty has already been written about the more absurd aspects of James Gunn's "Superman." Those aspects are intentional, of course -- efforts to remove the film from the more self-serious tone of some other recent adaptations and embrace the silliness of the comics.

Superman is full of awesome sci-fi elements, but the most fascinating one might be Lex Luthor's pocket dimension. How does that even work?