The film made two crucial errors in its iconic dance scene, where Fox's McFly performs "Johnny B. Goode" on a now-famous Gibson ES-345

A new documentary sheds light on the search for Marty McFly's red guitar from Back to the Future, which has been missing for 40 years.

Four decades after the blockbuster film debuted, the guitar’s creator has launched a search for the iconic Cherry Red Gibson ES-345, asking for the public’s help tracking it down.