Some audiences have found the trailers to Pacific Rim confusing. Giant monsters and giant robots, what? I’ve been pumped from the first trailer featuring a giant robot rocket-punching a giant monster. Pacific Rim relies on some tips of its spectacularly large hat to various precursors from monster movies and science fiction cinema. It presents a particular case of the more general problem that creators of genre fiction face—how much do I lean on a shared knowledge of popular (geek) culture?