There is film but its usually clips thrown in to other programs!
There was a regular one on some channel that appeared over the years and at the end of the programs they would show in the titles a Spitfire flying low past some hangers and then low over a steam train on a bank! That was the flight sheds at Castle Bromwich! And of course the time when Mr Churchill came to Brum to see Alex display and told his entourage to hold his train that was waiting so he could talk with him afterwards! Apparently, that sort of thing never happend!
Alex with the PM after the display outside his office at Castle Bromwich
AB