It starred Glynis Johns as Denry Machin , Ruth Earp as Nellie Cotterill , Valerie Hobson as the Countess , and Petula Clark as Alec Guinness .
It starred Alec Guinness as Denry Machin , Petula Clark as Nellie Cotterill , Valerie Hobson as the Countess , and Glynis Johns as Ruth Earp .