Movie director Robert Zemeckis has insisted that he will never agree to a remake or reboot of his classic Back to the Future trilogy.

The 63-year-old, who also helmed massive hits such as Who Framed Roger Rabbit and Forrest Gump, admitted that a reboot of the 1995 classic would be successful, but ruled out such any prospect during his lifetime.

When asked if he'd ever consider a remake, he told the British newspaper The Telegraph: "Oh, God no. That can't happen until both [co-writer Bob Gale] and I are dead. And then I'm sure they'll do it, unless there's a way our estates can stop it."

He added: "It's like saying: 'Let's remake Citizen Kane. Who are we going to get to play Kane?' What folly, what insanity is that? Why would anyone do that?"

The original Back to the Future starred Michael J. Fox and Christopher Lloyd and was a worldwide smash, grossing more than $383 million at the box office. 

The story follows Marty McFly (Fox), as a teenager who is accidentally sent back in time to 1955. Marty meets his future parents in high-school and becomes his mother's romantic interest. 

The film, which featured a fictitious DeLorean time machine, marked the beginning of a franchise, with two sequels Back to the Future Part II and III released, as well as an animated series, theme park ride, and several video games.