Back to the Future
Overview
Back to the Future is a 1985 American science-fiction adventure film
Adventure film
Adventure films are a genre of film.Unlike pure, low-budget action films they often use their action scenes preferably to display and explore exotic locations in an energetic way....

. It was directed by Robert Zemeckis
Robert Zemeckis
Robert Lee Zemeckis is an American film director, producer and screenwriter. Zemeckis first came to public attention in the 1980s as the director of the comedic time-travel Back to the Future film series, as well as the Academy Award-winning live-action/animation epic Who Framed Roger Rabbit ,...

, written by Zemeckis and Bob Gale
Bob Gale
Michael Robert "Bob" Gale is an American screenwriter who co-wrote the science fiction film Back to the Future with writing partner Robert Zemeckis, and the screenplays for the film's two sequels. Gale also co-produced all three films....

, produced by Steven Spielberg
Steven Spielberg
Steven Allan Spielberg KBE is an American film director, screenwriter, producer, video game designer, and studio entrepreneur. In a career of more than four decades, Spielberg's films have covered many themes and genres. Spielberg's early science-fiction and adventure films were seen as an...

, and starred Michael J. Fox
Michael J. Fox
Michael J. Fox, OC is a Canadian American actor, author, producer, activist and voice-over artist. With a film and television career spanning from the late 1970s, Fox's roles have included Marty McFly from the Back to the Future trilogy ; Alex P...

, Christopher Lloyd
Christopher Lloyd
Christopher Allen Lloyd is an American actor. He is best known for playing Emmett Brown in the Back to the Future trilogy, Uncle Fester in The Addams Family and Addams Family Values, and Judge Doom in Who Framed Roger Rabbit. He played Reverend Jim Ignatowski in the television series Taxi and more...

, Lea Thompson
Lea Thompson
Lea Katherine Thompson is an American actress and director. She is best known for her 1990s NBC situation comedy Caroline in the City and her portrayal of Lorraine Baines McFly, Marty McFly's mother, in the Back to the Future trilogy...

, Crispin Glover
Crispin Glover
Crispin Hellion Glover is an American film actor, director and screenwriter, recording artist, publisher, and author. Glover is known for portraying eccentric people on screen such as George McFly in Back to the Future, Layne in River's Edge, unfriendly recluse Rubin Farr in Rubin and Ed, the...

 and Thomas F. Wilson
Thomas F. Wilson
Thomas F. Wilson is an American actor, writer, musician, painter, voice-over artist and stand-up comedian. He is best known for playing Biff Tannen in the Back to the Future trilogy and Coach Ben Fredricks on NBC's Freaks and Geeks.-Early life:Thomas Francis Wilson, Jr. was...

. The film tells the story of Marty McFly
Marty McFly
Martin Seamus "Marty" McFly, Sr. is the protagonist in the Back to the Future film trilogy, and is portrayed by actor Michael J. Fox. Marty was also the protagonist in the animated series where he was voiced by David Kaufman...

, a teenager who is accidentally sent back in time
Time travel
Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space. Time travel could hypothetically involve moving backward in time to a moment earlier than the starting point, or forward to the future of that point without the...

 from 1985 to 1955. He meets his future-parents in high school and accidentally attracts his future mother's romantic interest. Marty must repair the damage to history by causing his parents-to-be to fall in love, and with the help of scientist Dr. Emmett "Doc" Brown
Emmett Brown
Doctor Emmett Lathrop "Doc" Brown, Ph.D. is a fictional character and one of the lead characters in the Back to the Future film trilogy, in which he is the inventor of the first time machine, which he builds out of a DeLorean sports car...

, he must find a way to return to 1985.

Zemeckis and Gale wrote the script after Gale mused upon whether he would have befriended his father if they attended school together.
Quotations

I'm sure that in 1985 plutonium is available in every corner drug store, but in 1955 it's a little hard to come by.

Meet Marty McFly. He's broken the time barrier. Busted his parents' first date. And, maybe, botched his chances of ever being born.

17 year old Marty McFly got home early last night. 30 years early.

Marty McFly just broke the time barrier. He's only got one week to get it fixed.

Marty McFly's having the time of his life. The only question is -- what time is it?

He was never in time for his classes... He wasn't in time for his dinner... Then one day... he wasn't in his time at all.

Bumping into your parents is no big deal unless you bump into them before you were born.

 
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