The Lifemanship books, actual works on which both films are based, were written by the real author named Stephen Potter.

Lifemanship: With a Summary of Recent Researches in Gamesmanship.

(The title alludes to Stephen Potter's satirical series of books that included 'Lifemanship'.)

This comedy classic, derived loosely from the books of Stephen Potter's "Lifemanship", "Gamesmanship" and "One-Upmanship", was a huge box-office success.

The character of Dr. P is a homage to the headmaster of the fictional Yeovil College of Lifemanship, Stephen Potter, in the original 1960 film.

Henry Palfrey (Ian Carmichael) arrives at Yeovil Town railway station and makes his way to the "School of Lifemanship", run by Stephen Potter (Alastair Sim).

One-Upmanship: Being Some Account of the Activities and Teachings of the Lifemanship Correspondence College of One-Upness and Games Lifemastery.