I just love these old films, thanks Melisandre.
One has to ask where it all went wrong. Government interference played a part, but there were plenty of other factors. I moved to Solihull in 1991 and the plant was still recognisable as in that film. - In fact, I think I inherited a few pieces of equipment. Lack of investment was always an issue, as was adopting new practices.
Not many know that Rover was quite a long way ahead with jet turbines. The auxiliary power unit on the Vulcan bomber was a Rover unit and had an incredibly long life. When the Vulcans were being scrapped, the Rover unit was always salvaged and often sold off to the Arab states for pumping use. Many are still in use today I believe. I think, (not 100% sure) that the Rover turbine interest eventually morphed into Noel Penny Turbines at Baginton where they made small turbine units for drones and targets. Certainly in '91 there were still plenty of reminders of turbine history around the site.