Ian La Frenais, Denholm Elliott, Elke Sommer, Leigh Lawson, Judy Geeson, Ralph Thomas, Sid Colin, Harry H. Corbett, Raymond Hitchcock

Percy's Progress is a movie starring Leigh Lawson, Elke Sommer, and Denholm Elliott. Percy, the man with the world's first penis transplant, discovers that there is a chemical in the city's water that makes men impotent.