DVD Player app full-screen

In the current DVD Player app, playing anything in 16:9 aspect ratio in full-screen mode results in it filling up the screen completely, meaning that it cuts off the sides of the image instead of presenting it in letterbox format like it should. (VLC doesn't have this problem, but it's pretty lousy as a DVD player for a variety of reasons.) I can't find a way to change the settings from within the app. Just wondering if there's any way to do so.