The first images of Ed Solomon's thought-provoking film, "Levity," came to the writer-director while tutoring in a maximum-security youth prison in Calabasas two decades ago. "One inmate kept a photograph of the boy he had shot, and he kept touching it, fingering it," he said, speaking quietly and intensely in a Santa Monica cafe on a recent afternoon. "He was struggling to understand that it was a human life he had taken, but he was only 17 and serving the first year of a life sentence. And that haunted me. I began wondering, 'What would he be like as an adult? Where would he go if he were let out of prison and what would he do with the photograph?'"