What considerations do I need to make when working with 16x9 footage in Motion? I'm setting up my project preferences as 16x9, so that my canvas expands appropriately. However, when I'm bringing my 16x9 footage in it appears squeezed into 4x3. I'm simply grabbing the outside edges of the frame and expanding them out so that it fits the entire size of the canvas, thereby expanding it to about 130%. Is this the correct way to work with 16x9 footage, or is there a better way? FYI, I shot the footage on a Canon XL-2. Thanks.