Sarah Dunn, whose debut novel The Big Love made a million-dollar movie sale and sold in 21 countries for some record deals for a first novel, has signed a major two-book deal for her next fiction with Judy Clain at Little, Brown. The first of the new novels is called I'm Not Myself, described as a take on Manhattan life and its characters today that resembles an update of Annie Hall. The North American rights deal, including electronic and audio, was made with agent NickEllison. A Big Love paperback is due in June from LB's Back Bay.