Eric doesn't manage to get to the punchline of a joke about two old men sitting in deckchairs. Ernie tried (and similarly failed) to do the same in their previous film with the same writers, The Intelligence Men (1965).
The double act released a spin-off single in 1966 on HMV Records (POP 1518) featuring the title song as the A-side and "Now That You're Here" as the B.
On the flight to France - they flew with British United Airlines and landed at Aeroport de Touquet.