In Back to the Future II, Marty McFly and Doc Brown hop in their DeLorean and visit the year 2015- specifically, October 21st, which happens to be today! The film gave audiences a bold look at what an eighties-inspired future would look like. But how did they accomplish all that hovering? Well, now we know: with a green-screening technique that was edited out afterwards. Check out these behind-the-scenes photos of how Robert Zemeckis and his team did it.

The movie offered a revolutionary way to make objects appear to be hovering:

hoverboard 2






Chroma key also made it easier for the special effects department to create space age technology:
gas station



Like the self-drying jacket:


Or the adult Marty McFly’s double tie:



Want to go further behind the scenes? Here’s why Back to the Future II is basically a documentary about 2015.


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