I want to place a matted movie on a movie screen seen from the side. I seem to remember that there is a keystroke that will allow me to warp the frame - larger on one side than the other.
Or am I miss-remembering, thinking of Photoshop or something. I swear I've used it in FCP.
You mean distort? Make sure your 'image and wireframe' is turned on in the canvas, then hit d to select the distort tool, and click and drag on the corner you want to adjust in the canvas.
Distort alone won't do it. First use the Basic 3D video filter to rotate the image on the Y axis, then use Distort to fit the image to the specific frame corners.