"Trent Reznor wants to be friends on Facebook" — the phrase does not roll off the tongue. But with help from producer Atticus Ross, Reznor has made a solid soundtrack to David Fincher's movie by doing what he's always done: creating grand industrial rock, including a stormy, synth-powered version of Edvard Grieg's orchestral "In the Hall of the Mountain King." It's creepy mood music for the brave new world, where all "friends" are virtual.

Peter Travers: The Social Network and 12 More Movies That Defined a Generation

“Is It True”

As the British Invasion reached its peak in 1964, Brenda Lee went from Nashville to London to record one of her hardest-rocking hits, her perky vocal backed by a stuttering, squalling guitar. That guitar was played by session musician Jimmy Page, yet to skyrocket to fame with first the Yardbirds and then Led Zeppelin. "She said to me, 'I've come here to make a record with the British sound,'" remembered producer Mickie Most. "She felt she wouldn't get the same sound in Nashville because they're only just catching up on the British beat group sound of about six months ago."