[ellis]

Вот так?

var clip_mcl:MovieClipLoader = new MovieClipLoader();
var mclListener:Object = new Object();
mclListener.onLoadInit = function(target_mc:MovieClip) {
trace(target_mc._width+','+target_mc._height);
xx = Math.round((Stage.width * 100) / target_mc._width);
yy = Math.round((Stage.height * 100) / target_mc._height);
trace(xx+','+yy);
target_mc._xscale = xx;
target_mc._yscale = yy;
};
	
clip_mc1.addListener(mclListener);
clip_mcl.loadClip(muv, target_mc);