Any newly-filmed scenes of George McFly could have easily been cut without compromising the story, with the older Lorraine possibly making up a quick excuse about George not being able to make dinner.

Marty McFly is a rock ‘n’ roll teenager who is accidentally transported back to 1955 in a time-traveling DeLorean invented by his friend, Dr. Emmett Brown. But before he can return to 1985 ...