put together a soundtrack for a movie

met someone who does this for a job. mixing sound and scenes. cool. good talk. fun.

and went to Heaven (not much of a chance there), I am pretty sure the first thing to my mind would not be “Durn It! I didn’t put together a soundtrack for a movie!”

I don’t want to write the music for it. Other people have way more talent than I in that department. I want to compile the tracks for an actual movie. What is that, a music supervisor or something?