Harborough man spends five days on top of a pole

Thanks to top Harborough tweeter @solarpilchard for alerting us to this film from 1959 on the Media Archive for Central England website:

Jenny Martin begins the report with a piece to camera explaining that Jack Watling is squatting up a pole in Market Harborough to publicise a film. She then calls upon the services of fireman Tom Alcock to carry her up a ladder to Mr Watling's hut at the top of the scaffolding structure. She then interviews Watling about his experiences of spending five days and nights in his hut.

Which film was he publicising? The Harborough Mail has gone to its archives and promises to tell us next week.