"WhatSong was started by myself back in 2008. I believed there lacked a website which truely helped users find music from movies. Since then we have grown into a comprehensive database, with over 1,200 movies, 15,000 artists and 30,000 songs. Our main mission is to make this site the most helpful and comprehensive site for discovering songs you heard in movies."
It also has some songs from TV and video games.