Gale and Zemeckis also co-wrote the short film "Doc Brown Saves the World," which appeared on the 30th anniversary BttF box set in 2015. The same year, Gale co-authored a Back to the Future comic book series for IDW.

"Back to the Future" writer and producer Bob Gale curses at fans when constantly asked about "Back to the Future 4."

Bob Gale co-wrote all three Back to the Future movies with director Robert Zemeckis; suffice to say, a fourth film is not in the works.

Back to the Future screenwriter Bob Gale has given a very frank answer to whether we'll ever see a fourquel in the iconic franchise. Gale penned all three Back to the Future movies alongside director Robert Zemeckis. At the Saturn Awards, he poured water over any hopes for more movies (via Collider ).