Sluggo said:
That new actress for Loraine in BTTF:2. That was impossible to take the rest of the franchise seriously after that fiasco.
Erm... What? Upside-down George was played by a different actor, but Lorraine was played by Lea Thompson, same as parts 1 & 3. Her breasts in the Biff'85 were definitely from a different actress... but that's another story altogether.