movie review WUTHERING HEIGHTS Running time: 136 minutes. Rated R (some violent context, sexual content, language). In theaters Feb. 13. Teachers won’t be playing this movie in English Lit class anytime soon. Not unless their kink is angry emails. For one, Emerald Fennell’s R-rated “Wuthering Heights” has a healthy amount of sex scenes — far more, anyway, than the novel’s zero. And that’s not the only bold departure from the Victorian-Era source material. If high-school students were to watch