Today is officially Back to the Future Day (finally) and the Internet is celebrating with an onslaught of marketing campaigns and new BTTF goodies. But let's take a step back to appreciate how the trilogy came to be a part of pop culture history.
[seealso slug="back-to-the-future-2015-gadgets"]
After dipping into the Universal archive and the selection of images from the team at Outatime, here is a behind the scenes look at what it took to make the classic movies.