Sneaker: Nike Air Mag
Year: 1989

Never has one scene from a movie done more for a (nonexistent) sneaker. Well, not that the Air MAG was entirely nonexistent. Tinker Hatfield not only designed the shoe for Back to the Future Part II, but storyboarded the scene. But Marty McFly's 2015 Nikes were nothing more than a prop, no more available to the public than a time-travelling DeLorean. But the self-lacing sneakers captured the imagination of budding sneakerheads everywhere, who kept on Nike until a very limited (and for charity) run of Air MAGs were made in 2011. So, GR in two years? Your call, Nike.