See here for the film: https://www.youtube.com/watch?v=ujizGyxy144.
In Oxford there's a NISA fairtrade workers' cooperative shop and just a few doors down a new Tescos Express is about to open. What's going to happen? Also I'm sad to report The People's Supermarket has closed down.
See here for background: http://hpanwo-tv.blogspot.co.uk/2011/06/heres-to-small-local-shops.html.