Pablo Larraín’s Spencer is a tender, difficult, resplendent, and devastating movie. It is very, very good. Kristen Stewart brings all her formidable powers to bear, blazing through the screen with a flamboyant, heartsick chaos that sears through quiet dialogue and tense, terrible scenes of solitude.
Part of the challenge of the movie—and part of why it was such a hot-button topic in its casting to its star’s accent—is that Diana seems untouchable. She is so beloved, so deeply mourned, so tragic that it becomes difficult to...