Getting variable data from a loaded movieClip

1

I am having a brain meltdown and for the life of me can’t remember how to do this…

I have loaded an .swf into a empty movie clip

i.e.
container.loadMovie(“content.swf”);

I am wanting to get the width of the clip being loaded, but whenever I call container._width, I get 0.

So, I populated a variable within content.swf that has the width, but I can’t remember how to get the value out of it.

Is there a simpler way from the timeline just to simply get the width of the loaded clip?