La Valse d'Amélie is one of the main melodies of sound track of the 2001 French film Amélie.
Director Jean-Pierre Jeunet chanced upon the accordion- and piano-driven music of Yann Tiersen while driving with his production assistant who put on a CD he had not heard before. Greatly impressed, he immediately bought Tiersen's entire catalogue and eventually commissioned him to compose pieces for the film. The soundtrack features both compositions from Tiersen's first three albums, as well as new items, variants of which can be found on his fourth album, L'Absente, which he was writing at the same time.
Besides the accordion and piano, the music features parts played with harpsichord, banjo, bass guitar, vibraphone, and even a bicycle wheel at the end of "La Dispute" (which plays over the opening titles in the motion picture).