There's no argument that the Back to the Future trilogy is one of the most fun and influential franchises from the '80s. Each film works perfectly as a piece of popcorn entertainment, and the well-constructed storylines don't leave much room for error. The Back to the Future Easter eggs collected here highlight the franchise's many veiled references and instances of foreshadowing.
These Back to the Future hidden messages show how it's crazy that film director Robert Zemeckis didn't think the original movie warranted a sequel, despite it being full of foreshadowing for the rest of the franchise. Once you finish reading about all the foreshadowing in Back to the Future, go back and watch the films to see if there's anything else you can catch.