James Gunn has thought about even the tiniest – and grossest – detail when it comes to Superman, it seems, because the DC Studios co-CEO even has an explanation for how pocket dimension prisoners use the toilet.
In the movie, it's revealed that Lex Luthor keeps a whole host of prisoners in a secret jail concealed within a pocket dimension. Each prisoner is trapped within a transparent glass box, meaning there's no privacy whatsoever. So, how do they use the bathroom? Well, Gunn has an answer.
