This looks like the trailer for a “Back to the Future” prequel about Dr. Emmett Brown’s dealings with a Libyan terrorist group — before he meets Marty McFly. But even a great makeup artist would have a hard time making Christopher Lloyd look so much younger. So where did it come from?

It’s the work of very clever editor Tyler Hopkins, who used clips from “Back to the Future,” “My Favorite Martian,” “Camp Nowhere,” “Things to Do in Denver When You’re Dead,” “Dennis the Menace,” “Zero Dark Thirty,” “Argo,” “The Sum of All Fears,” “Syriana,” “Iron Man,” “Dazed and Confused,” and “Munich.”

Hopkins is also the guy who turned “Pulp Fiction” into a 1970s-style sitcom promo.