Two wonderful films highlight this week's slate of DVD releases -- at both ends of the spectrum. For the mature crowd, there's Darren Aronofsky's decidedly dark take on an artist pushing herself to the limits of sanity -- in the rarefied world of ballet -- in 'Black Swan.' For the family, there's 'Tangled,' Disney's take on the Rapunzel fairy tale that lightens the storytelling load and makes the Grimm story a lot less grim. Somewhere in-between is 'Fair Game,' Doug Liman's biodrama about Valerie Plame, a CIA agent who was outed by the Bush administration because her husband -- an ex-Ambassador -- blew the whistle on the fake weapons of mass destruction in Iraq. It's enough to get your blood boiling. Read on.