Sound for a loaded movie doesn't play

I built a container for all my movies to load into, so some elements of my main movie do not change; Here’s my problem, when I load one of my movies into this container, I lose the sound action I scripted in the loaded movie. I have another sound that plays constantly, the one I want to invoke when the mouse passes over a button, does not play, but you can here the sound that I have playing constantly break up as if there were some other sound trying to execute. Funny thing is, when I open the movie I wanted to load by itself, I get the action I wanted?
Any ideas as to what could be happening? Can I fix this?