Delorean Time Machine

Scene from BTTF Part #1  ( 1.21 Gigawatts)

 

Year of production: 1985

 

Marty McFly goes back in time to 1955 and vists Doc Brown and tries to explain how the Delorean Time Machine works, but he needs a certain amount of power that is needed to get him back to 1985 where he came from. This scene explains the 1.21 Gigawatts that is needed.