A surprise smash hit, Back to the Future took the 1985 box office by storm.

Michael J Fox, who was a recast Marty McFly weeks into production, alongside Christopher Lloyd’s Doc Brown won over audiences with their time travelling adventure.

As a result, creators Bob Gale and Robert Zemeckis were convinced by Universal to shoot two sequels back-to-back.

The DeLorean took Doc and Marty to the future with flying cars in 2015, back to the 1955 of the original film and to the Wild West of 1885.

The…