Preload External Flash Movies using Movie Clips
This tutorial shows you an easy way to load one Flash Movie into another. This loads the external Flash SWF Movie into a Movie Clip with the help of the Progress Bar Component. Loading a Movie into an MC means that you can address the Movie Clip in the ActionScript and change the Movie Clips properties. This MC includes the external swf file so any change that you impose on the Movie Clip also changes the external Movie nested within.