Question:  Not Now, Comrade is a 1976 British comedy film directed by Ray Cooney, and featured a number of British comedy actors of the era including which British actor and singer best known as Lofty?
Sentence (from "Don Estelle"): Don Estelle (22 May 1933 – 2 August 2003) was a British actor and singer best known as Lofty in "It Ain't Half Hot Mum".
Relevant evidence: Yes