Marty McFly's red guitar from the original "Back to the Future" is missing and the movie's cast and filmmakers are asking for the public's help.

For four decades, a crucial piece of cinematic history has been missing. It’s the iconic cherry red Gibson ES-345 that Marty McFly shredded during the legendary Enchantment Under the Sea dance scene in Back to the Future—an electrifying moment that sparked a generation of guitarists and cemented the instrument’s place in pop culture.