[Skoder]

var mclListener:Object = new Object();
var mcLoader:MovieClipLoader = new MovieClipLoader();
mcLoader.addListener(mclListener);
 
mcLoader.loadClip("sample.swf", _root);
mclListener.onLoadInit = function(target_mc:MovieClip) {
 
}
 
mclListener.onLoadProgress = function(target_mc:MovieClip, bytesLoaded:Number, bytesTotal:Number):Void {
    trace(int(bytesLoaded/bytesTotal*100) + " %");
}