Bradford, once the worsted capital of the world, now employs fewer than 1,000 workers in the textile industry. Some of the disused mills have been transformed into tourist attractions – nearby Salts Mill has a huge collection of artwork by David Hockney and a posh bistro. Drummonds Mill has lain silent since closure, to be reopened temporarily for Freedom Studios’ production of The Mill – City of Dreams. Drummonds Mill is just north of the city centre. It’s a huge hulk of a building. You step carefully over the cobbles, and weeds, before being directed in through a back door by smiling security guards. The mill originally opened in 1862, closing for the last time in 2002. At the entrance, a huge banner announces that luxury flats are under development.