The business side of Sundance has shuddered into life the last few days and deals are finally getting done, even as the festival starts winding down. HBO bought " Me @ the ZOO," a documentary about internet madman Chris " Leave Britney Alone!" Crocker. Focus picked up " For a Good Time, Call...," a comedy about two roommates (Ari Graynor and Lauren Anne Miller) who start a phone sex business; audience response was positive if not over the moon. Sony Pictures Classics bought distribution rights to divorce rom-com " Celeste and Jesse Forever" and disappearing-60's-rocker documentary " Searching for Sugar Man," both well-received, while the new LD Distribution snagged midnight mumblecore horror movie (you heard me) " Black Rock."