I was expecting a film about the camera, I have one a friend gave me after his father died.
It's and excellent video, misses a few real truths though. During WWII Ilford were told to halt all colour film research, and so were two generations behind technologically when the introduced Ilfocolour and Ilfochrome. Then the UK Government's Monopolies Commission killed the films, Ilford's colour films had to be sent back to Ilford for processing, that was the only way it could be profitable.
Kodak had lost a similar case in the US with Kodachrome processing, and had to open up processing to 3rd parties, although they kept a monopoly in other countries for a lot longer, only changing towards the end because people wanted same or next day processing.
But because Ilford were behind they could not afford losing all processing, so discontinued production.
The video misses out Ilford's colour films in the late 1970s, early 80s. I still have an exposed but unprocessed roll of E6 Ilfochrome. These were re-badged Konica/Sakura films. About halfway between the Orwo colour films and Fuji/Kodak, after the first I didn't bother processing the second.
I visited the Mobberley factory a few times for work in the early 1980s, and there was a plot designated for a new colour coating facility, the idea had been build up sales with re-badged colour films and then make their own. But they chose the wrong partner.
Ian