Back to the Future is a beloved 1985 American science fiction film directed by Robert Zemeckis and written by Zemeckis and Bob Gale. It stars Michael J. Fox as Marty McFly, a high school student who accidentally travels back to 1955 in a time-traveling DeLorean built by his eccentric scientist friend Emmett “Doc” Brown, played by Christopher Lloyd. 

Plot summary

Marty’s journey to the past accidentally disrupts his parents’ meeting, jeopardizing his very existence in 1985. To rectify this, Marty must ensure his future parents fall in love and find a way back to his own time, all while avoiding altering other aspects of the future. He also has to navigate the challenges presented by Biff Tannen, the antagonist in both timelines, according to Wikipedia. Marty’s actions in 1955 ultimately lead to a vastly improved future for his family in 1985. 

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