Todd Gilchrist editor “Miller’s Girl,” about a relationship that develops between a wise-beyond-her-years teenager and her intellectually undernourished teacher, feels like catnip for the circular discourse of Film Twitter, but it’s hard to tell where a study of post-#MeToo power dynamics will land with moviegoers in the real world. Written, produced and directed by Jade Halley Bartlett, the film is both impressively erudite and unrelentingly self-aware, a combination it bravely attempts but doesn’t quite fully balance.