Directed by Robert Zemeckis, Back to the Future not only grossed $190 million in 1985, making it the biggest film of the year, but it also continues to be remembered as one of the most beloved films nearly four decades later. This film, which turned lead actor Michael J. Fox into one of the biggest stars of the '80s, sparked a desire in everyone to own their own DeLorean. However, despite this success, the adaptation process of Back to the Future faced many challenges. Zemeckis and screenwriter Bob Gale received negative responses from many studios, including Disney, due to the story involving a mother falling in love with her future son.

When the film finally went into production, it was Eric Stoltz, not Fox, who was cast as Marty McFly. After Stoltz was fired, a significant portion of the film had to be re-shot with Fox. There were also some issues with the script of Back to the Future. For example, the beloved DeLorean time machine was originally designed as a box the size of a fixed refrigerator. This could have taken the film in a very different direction. Additionally, the exciting final scene where Doc Brown (Christopher Lloyd) is supposed to send Marty back to 1985 was originally conceived in a much different way; Marty was supposed to drive during a nuclear explosion.

The starting point of Back to the Future begins when Marty McFly accidentally travels back to 1955 while escaping from terrorists using the DeLorean. Stuck in a world that no longer exists, Marty jeopardizes his own birth by ruining the moment his father George (Crispin Glover) meets his mother Lorraine (Lea Thompson). The biggest nightmare occurs when his mother falls in love with Marty; however, overcoming all these oddities doesn't matter if it doesn't allow Marty to return to his own time.

The third act of Back to the Future becomes a victory with George defending himself and winning Lorraine's love. Doc Brown in 1955 knows exactly when lightning will strike the Hill Valley clock tower to send Marty back to his future, so he places a wire on the clock. The plan is for Marty to catch this wire with the DeLorean at the exact moment lightning strikes, providing enough power for the time machine to work. The thrilling way all these mishaps unfold makes Back to the Future one of the greatest films of all time.