Loading external movie that lets you drag

Hi I have a main swf with a button that loads another swf in a movie clip, and I want to know how I can make a button that lets you drag the importated swf file in that movie clip.

here is the code for the button

on (release) {
loadMovie(“Untitled-1.swf”, “_root.testing”);
}

Set the drag method to the movieclip where you have loaded the movie into.
ie:

_root.testing.startDrag(true);