Back to the Future 1985

Eighties teenager Marty McFly is accidentally sent back in time to 1955, inadvertently disrupting his parents' first meeting and attracting his mother's romantic interest. Marty must repair the damage to history by rekindling his parents' romance and - with the help of his eccentric inventor friend Doc Brown - return to 1985.

Spoilers for Back to the Future

Submitted by: aberen

Doc Brown isn't actually dead, he was wearing a bulletproof vest.

Submitted by: jarllyng

Marty makes his parents fall in love, invents rock n' roll and uses lightning to get the timemachine up and running. Man, what a day.