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.

Filmmakers went looking for the instrument while making the movie's 1989 sequel, but even now it's nowhere to be found.

Marty McFly grabbed a guitar in “Back to the Future” and rocked out with the band at a 1950s high school dance, helping him ...