The audio commentary was incredibly dull — British people sitting around, telling boring stories ("There is a story behind her putting on earrings in the car - we realized she wasn't wearing any in the previous scene and she is in the next"). Director Stephen Frears and writer Peter Morgan often talk over one another, making it near impossible to decipher what they are trying to say. Interestingly enough, when there are pauses in the conversation, the movie audio does not come back up, leaving brief stretches of near-silence. I have never been a fan of DVD commentaries, but this one is especially dreadful.
The documentary is no better. Standard interviews with director and stars. The only interesting part was hearing the actors talk about their reactions, and the world's reaction, to Princess Diana's death. The majority of the documentary has the stars of the film talking about what it was like to play real people. Nothing new or insightful there.
Luckily the film itself is reason enough to buy the DVD. Spectacularly written, acted, and directed, The Queen doesn't need fancy extras to impress.