Judd Apatow is releasing a sequel to his best-selling book, "Sick in the Head," which was a compilation of interviews with comedians like Jerry Seinfeld and Mel Brooks. Apatow's new book is called "Sicker in the Head" and it will feature interviews with more comedians, including Kevin Hart, Norman Lear and Whitney Cummings. The book was announced on Wednesday by Random House. No release date has been set yet. Apatow is known for directing such comedies as "This is 40" and "Knocked Up.