No resize/scaling a movie clip on the scaling stage

I know this has probably been answered here already, but I’ve search through all the threads with “scaling” and “resizing” and can’t find the solution.

Basically I have a GUI element on a gallery that I don’t want to scale, while the rest of the page is free to resize/scale.

I think I need to add a listener of some sort to the stage, but I’m not sure how to do this. If you can point me to a thread where this has already been answered, great! Otherwise I would be grateful for any help you could provide here.