HUEY TAKES A BOW

Along with Huey Lewis’ generation-gapping musical contributions to “Back to the Future,� the film includes an onscreen appearance by the rocker. But you’ve got to look fast. . . .

Wearing a drab suit, thick glasses and slicked-back hair, Lewis is a nerdy high school teacher who auditions bands who want to play for a school dance. His dialogue won’t exactly make movie history: He shouts the word “Next!� into a megaphone.

But as Lewis has noted (with a playful role of the eyes) in a documentary about the making of the film, “It was my film debut, so I took it very seriously.�