Loading an external movie inside an external movie?

This is my problem.

First my nav buttons load an external movie to a container movieclip. However in this loaded movie I am using another container to load in other movieclips (I am loading a movie in turn that movie contains buttons which loads in other movies to another container in that movie).

I’m using the following code on the buttons -

on (release){
_root.container.loadMovie(“test.swf”);
}

however when I click on the button in the movie clip it just goes white. Is my code wrong? Can you only load one movieclip using containers? I know I’ve explained it very complicated.

  1. I click a button.
  2. That button loads an external file to a container.
  3. In that external file there is another button, when clicked loads another external file into it using another container.

Please someone help!!!