During post-production on Superman, writer-director James Gunn ran into a problem. “We found that people loved the movie but that they were confused about the world they were entering,” Gunn told io9 recently. And so, to fix that problem, late in the filmmaking process, he looked to another one of his favorite films for the fix.

James Gunn isn’t trying to reinvent Superman . He’s trying to remind us why he mattered in the first place. In a recent episode of Grave Conversations hosted by The Suicide Squad 's David Dastmalchian ,