Home People Mayo Simon Mayo Simon movies Mayo Simon movies Mayo Simon Movies (5) Futureworld (1976) As Writer. He was 75 years old Phase IV (1974) As Writer. He was 73 years old Marooned (1969) As Screenplay. He was 68 years old Why Man Creates (1968) As Writer. He was 67 years old I Could Go on Singing (1963) As Screenplay. He was 62 years old
