Jenna Ortega’s new movie, “Miller’s Girl,” is starting a conversation about age gap relationships, consent and media depictions of both. Released in theaters this past January, the movie quickly charted after dropping on Netflix in April. The movie’s plot line has drawn interest and scrutiny. In it, high schooler Cairo Sweet (Ortega) has an inappropriately close bond with her English teacher, Mr. Miller (Martin Freeman). The film takes a close look at blurred lines in relationships and what happens when boundaries aren’t fully set, especially between people with a power differential. That’s exactly what drew Freeman to the plot, he...