Peter Sellers was a huge star both on radio and televison, and fast becoming a box-office hot property, when he was called in twenty-four hours before filming began to take over from Peter Ustinov, who had walked off a movie called 'The Pink Panther' and had left the character of Inspector Clousseau in urgent need of recasting. 'The Trail of the Pink Panther' will detail each film featuring interviews with cast and crew, as well as many previously unpublished stills.