Was Back to the Future 1 and 2 filmed together?

Back to the future is an American science fiction comedy franchise created by Robert Zemeckis and Bob Gale.

The franchise follows the adventures of a high school student, Marty McFly, and an eccentric scientist, Dr Emmett that use a DeLorean time machine to travel into a different period in the history of the fictional town of Hill Valley, California.

Was Back to the Future 1 and 2 filmed together?

Back to the Future 1 and 2 were both filmed over the course of eleven months. This film was being edited while Back to the Future Part III (1990) was being filmed.

Fox did double filming for the first movie. Because filming on Family Ties overlapped with Back to the Future for three months, Fox had a gruelling schedule. He filmed the TV show during the day before rushing to the BTTF set to film until just before dawn.