In this T-Boy article, please consider it to be an invitation to join me on a personal journey in search of the source of many of the cinema's most popular musical soundtracks. I've tried to make the categories specific, where the composer worked with the director before the film was shot, or used a pre-existing composition after the movie was in the can. Categories also include the innovation of using songs in films that have not been done before. I hope this makes sense once you see the line-up of film soundtracks on the list, where you'll also notice that there are many others not included which would make the list too long - so here's a few below:

"With guys like Elvis, Jerry Lee, Johnny Cash, Roy Orbison, Charlie Rich … and you know, we didn't really know what we were doing. But we knew there was something in the music … that the kids were getting up and knocking dust out of them old gymnasium floors." ----Carl Perkins