The phrase "up 'n' under" (a catchphrase of real-life rugby commentator Eddie Waring) is a term used in rugby. An "up 'n' under" is a high kick angled so that the catcher, while looking skyward at the descending ball, receives at the same time as the ball, one or more chasing players travelling at speed, into his abdomen. The intention is to dislodge the ball, or even persuade the catcher to not bother making the catch.
The trivia items below may give away important plot points.
For the funding to be in place, John Godber once recalled, he had to have three things in the movie: Griff Rhys Jones as the local radio commentator, Samantha Womack naked and the Wheatsheaf Arms had to win at the end of the movie. The end of the original play sees the Wheatsheaf Arms lose.