Norman's final film
The 92-year-old comic came out of retirement earlier this year to appear in the short film Expresso.
Wisdom plays a vicar being plagued by a fly in the ten-minute movie, which is being released on DVD tomorrow in aid of Macmillan Cancer Support UK.
Sir Norman's family say it is his final performance, as he is suffering from vascular dementia and is now looked after in a care home.
Expresso is about the different customers who occupy one table in a café over the course of a day. It was shot in Bromsgrove, West Midlands, in January.
Producer Martin Nigel Davey said: ‘I knew Sir Norman was retired and didn't really expect him to say yes, so I couldn't believe it when the answer came back.
‘I rewrote Norman's part as a purely visual role, so he didn't have to remember any dialogue. But on the day he was alert and had everyone around him in stitches.
‘We were filming with him for about five hours and he kept changing his performance so it produced even more laughs. He may be 92 but he was still an absolute professional.’
The DVD will be available from www.macmillan.org.uk/
Published: 27 Aug 2007