Romantic drama One Day was a smash hit at the box office. Meet the man behind the movie as novelist David Nicholls reflects on the film’s success and delves into his latest novel, Us. Longlisted for the Man Booker prize, the intelligent comedy pits reason against emotion, art against science and parents against children. Nicholls will also take the time to discuss the process behind adapting a novel for the screen. Under 5s are free but must sit on parent's lap.