The statue of the troglodyte guitarist which appears in the nightclub also appears in Rudi's Bar in The Human Jungle S1/6 A Friend of the Sergeant Major (4/5/63) and the maze of Laurence Olivier's House in Sleuth (1972)

The flight Billy and his band should have taken is operated by Anglo Amalgamated Airways, a tip of the hat to the production company for the film.