Continuity mistake: When Bond runs out of the London Underground Station, he is covered in dust. The dust is still there when he runs into the Houses of Parliament and still there when he drives off with M. Yet the dust has disappeared when Bond and M find the Aston Martin. There was no time to clean up the dust since he was driving.
The title song "Skyfall" was the first James Bond theme to win the Academy Award for Best Original Song, and was the first to earn an Oscar nomination since the song for 1981's "For Your Eyes Only".
Even though he appears on screen for more than fifteen minutes, Ola Rapace (playing Patrice, the mercenary they chase at the start who Bond later catches in Shanghai) doesn't have a single word of dialogue.