‘Playwrights,’ With Rajiv Joseph and Tarell Alvin McCraney, on PBS

NYTimes.com: Capturing the creative process in a documentary is next to impossible, and “Playwright: From Page to Stage,” on Monday on PBS’s “Independent Lens,” doesn’t succeed any better than previous efforts. But the film, which follows two young playwrights as they have new works produced in prominent regional theaters (culminating, for one, in a Broadway run), does have a few candid moments that go deeper than we’re used to seeing.