The magic speed in the movie would take its characters Marty McFly (Michael J Fox) and his eccentric scientist friend Doc Brown (Christopher Lloyd) to the past and future in their time machine built from a modified DeLorean.
The cult classic released on July 3, 1985 and is considered timeless for successfully predicting future inventions like hi-tech glasses, flying cars, hoverboards, wireless video games, among many other technologies which are a reality in 2015.
What would be an interesting trivia for fans today is that the year 2015 gets a mention in the franchise because Doc, Marty and Jennifer time-travel to the future date of October 21, 2015, in the sequel.
Travelling back in time, Marty meets young versions of his parents (Crispin Glover, Lea Thompson) and must make sure that they fall in love or he will cease to exist. He also needs to ensure that he returns to the present to save Doc Brown.
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It continues to be a money-minting brand as the film has an animated series, theme park ride, video games and a forthcoming musical.
Fans are celebrating the anniversary of the movie in their own way with most of them taking to social networking sites to share trivia, footage, bloopers, dialogues, and GIFs (Graphics Interchange Format).
Some 16,000 people attended one of the largest "Back to the Future" screening at the Hollywood Bowl, in LA, accompanied by live orchestra to celebrate the film's anniversary.