Despite that whole K-Street mess, HBO is going back into business with producers George Clooney and Steven Soderbergh. The pay-cabler has given the green light to the duo's latest series, an untitled improv comedy that revolves around a trio of struggling actors trying to make it big in Hollywood. Among the show's stars: Clooney's on-again/off-again girlfriend Krista Allen. Now it's all making sense.