Bach, Goldberg Variations
The Open Goldberg Variations (Johann Sebastian Bach, BWV 988), played by Kimiko Ishizaka on a Bösendorfer 290 Imperial piano, are free to download and share. They are governed by the Creative Commons Zero license, which means that they are a part of the public domain, and every use of them is allowed.
Kimiko Ishizaka https://music.kimiko-piano.com/album/j-s-bach-open-goldberg-variations-bwv-988-piano
Goldberg Variations in “Silence of the Lambs”
This is popularized in Silence of the Lambs, where Hannibal Lecter requests the piece, and kills in a orgy with the music.
Buy Silence of the Lambs
Hannibal, the Art of Eating
Hannibal, Complete Series