onStop Event for MovieClip?

Has this been discussed? My search didn’t turn anything up. What I am looking for is a way to call a function whenever the MovieClip is stopped. I’m loading multiple external movies into one container and would prefer just calling the “stop()” method whenever I switch between movies instead of calling a user defined function for each movie. Not all the external movies require a specialized function, but some will need to stop tweens and sounds, et cetera.