In his latest film, Val Kilmer gets an unusual screen credit for a bona fide Hollywood movie star: cinematographer.That's because the documentary “Val” is built on thousands of hours Kilmer filmed since he was a boy — growing up, on movie sets, in cars, in hospitals. This is a lifetime-in-the-making cinematographer’s credit.Thanks to Kilmer's relentless drive to document things, “Val” is a remarkably intimate film and a moving one, too.