If you really want to cut a horizontal part of the movie - as opposed to hide or not see it (as in pjc's solution), you might have to resort to using a screen capture program with a capture area set to miss out the bottom part of the movie, followed by a re-edit or whatever.
This probably won't be a very effective way of doing it - quality and speed are often things that suffer with screen capture - but it might be worth an experiment?
Cheers
Adrian
Life is really simple, but we insist on making it complicated. (see below)
Confucius
AMD Phenom IIX6 1055T, win10, 5 internal drives, 7 usb drives, struggling power supply.