Back To The Future

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When Marty McFly is sent back to 1955 in Doc Brown's time-travelling DeLorean, he must successfully get his parents to fall in love. If not, he will be erased from existence. He and the Doc also have to figure out how to generate 1.21 "jigawatts" of electricity in order to send him back to 1985. 

The twisty, turny plot of Back to the Future thrived on little cross-time touches - like Marty's being mistaken for "Calvin Klein", since that's the name sewn on his underwear.

That type of creativity and the script's manic energy helped earn Director Robert Zemeckis and co-writer Bob Gale an Academy Award nomination, and the film itself became one of the biggest hits of the decade.

Crispin Glover plays Marty's hapless father, George, while Lea Thompson plays Lorraine, his mother. Two sequels followed, as did a successful cartoon series and a motion ride at the Universal Studios theme parks in California and Florida.

 "Lorraine, you are my density."