For some reason, since we're conceiving of things in terms of "In-Universe TV," I'm picturing an artsy biopic of a switch who is a prominent figure in society - maybe a princess, or a general, or some kind of leader where the pressure to conform to normative dynamics and the emphasis on designating exactly where control lies is huge. And at some point maybe she makes a grand coming out public statement, or if the movie is a romance it focuses on her either finding another non-normative dynamic partner or finally reaching a loving understanding with a pre-existing dom/sub partner. Huge movement forward for switch rights, and recognition as a separate and distinct category.

The movie gets kudos at Sundance, maybe wins a GLAAD award. The actress may or may not be a switch herself, and fandom discourse occurs