This programme was shown on BBC 4 tonight and another episode is due next week.
The films in question were shot by amateurs interspersed with clips of newsreel to add context. Most of the films were about the 'home front' but there were some that showed naval as well as RAF subjects. The best of the naval film showed Fulmars taking off from HMS Argus. This was all too brief, but fascinating.
Some of the 'home front' film was of dig fights during the Battle of Britain. There were fleeting glimpses of Boulton Paul Defiants as well as the more common types.
If you missed it try and catch it up 'catch up'. It's well worth a view.