The executive director will Google a few basic facets of the property not immediately related to the story at hand, and instruct their crew to sprinkle some throwaway references to them throughout the film. Critics will construe this as evidence of the film's authenticity, as though it were produced by fans of the property in question and not by the entirely unrelated movie studio we'd known from the start was producing it. Consider it a manifestation of the more general phenomenon of construing media of any kind as a love letter to X, as if to deny the commodity status that was always-already informing that media's creation: we can only tolerate the brute inhumanity that permeates our world by projecting a nonexistent sense of humanity into whatever cracks we can.
Also somewhere in all this: a rejoinder to the supposed death of monoculture, and how the modern role of subculture is to perpetuate/validate the monoculture by allowing itself to be subsumed into it.