The Lens Within Me (1970)

After unearthing the camcorder his dying father gave him at his bar mitzvah, a Long Island teenager claws his way into a Manhattan film school — where, with one festival slot on the line and a classmate's film in contention, he must confront the truth that the documentary he's making about everyone else cannot be finished until he stops editing himself, and his father's memory, out of the frame.