EXCLUSIVE: A potential single-camera comedy series for HBO is building a formidable team. Jay Roach is set to direct the project, titled The Third Coast, which has Annette Bening attached to star. I hear Bening and the producers are doing an informal reading to get a feel for the show before they take it formally to HBO, the network for which it is earmarked. Written by Paul Rudnick, Third Coast revolves around a larger-than-life casting director (Bening) in New Mexico. Rudnick, Roach and John Lyons executive produce. The Third Coast brings Oscar-nominated Bening back to HBO where she toplined the 2005 movie Mrs. Harris, earning an Emmy nomination. For Roach, Third Coast falls under a two-year deal with HBO he inked last year on the heels of back-to-back best movie/miniseries and directing Emmys he landed for the network’s Recount and Game Change.