Sure, Helen Mirren is great in the film, and the editing was excellent, but it really felt like a made-for-tv movie or something. Prince Charles only looked like Prince Charles when his back was to the camera, and I'm sorry, but Prince Philip is infinitely hotter and cooler than James Cromwell. And Diana is really the most sparkling presence on the screen. Which I suppose was always the problem for the real queen, so this is, perhaps, ok.
Anyway, see it for Helen Mirren, but yeah, it's not all that. (That said, I've been thinking about it since I left the theater, so maybe it's better than I think it is?)