 Peter Cooks wife, Wendy was nine months pregnant when filming  began. Director Bryan Forbes promised Peter and Wendy that he will  let him leave the set as soon as Wendy goes into labor. He kept his  word and Peter made it to the hospital just in time for the birth of  his daughter. Bryan Forbes, Dudley Moore, Michael Caine, and Peter  Sellers filled his dressing room with flowers and champagne in  celebration of the birth of Peter Cooks daughter Daisy when he  returned to work.