“This is a relationship that has sacred things that should not be used as a weapon in argument — and they both ignore that… It creates this anxiety that someone is going to say something that they’re never going to be able to recover from.”

In the upcoming Netflix film Malcolm & Marie, John David Washington and Zendaya masterfully depict a lovers’ quarrel that goes way too far. These two are habitual line-steppers, and their night of heated back-and-forth is a master class in acting—and the do’s…