A problem playing movie after loading

I can get my swf to load but it olny plays for about 1 or 2 seconds and then it’s gone. I can’t seem to figure out why? This is my code and I don’t see anything wrong with it, but maybe somebody else will.


_global.isLoaded = "False";
//
isLoaded = "True";
if (isLoaded == "True") {
 _root.createEmptyMovieClip("container", 10);
 loadMovie("Westfield_APPLIED.swf", "container");
 container._x = 0;
 container._y = 0;
}
trace(isLoaded);