There's a film on this afternoon on Film4 called The Rochdale Pioneers. Starts at 5.45 and it's the true story set in 1844 about a group of working class people who get together to change the unfair society they live in by raising enough money to buy their own shop. Having taken an Economic History O level many years ago I knew instantly that this was about how the Co-op came into existence.
The film was produced by the Co-op British Youth Film Academy. From the trailer I could see that John Henshaw and John McArdle are in it, though most of the cast are local to Rochdale and Manchester.
Trailer:
If you saw The Paradise last week, you would remember Denise's idea of forming a bit like a co-op amongst the local shop-owners.