This film actually reminds me the 1/72th Airfix kit "Refuelling set" I'have had when I was kid
This film is very interesting for all the vehicles and airplanes acting in it, and seems very accurate on all the details, without any anachronism... just some airbattles are actually using model airplanes, alterning with real airplanes scenes and historical footages.
Nice shots of airplanes, dedicated to all the fans (Alex..etc..)
I guess it's an Avro, maybe a 504?
Another "biplan" of RAF in the background
This one , to be identificate too
oouuch!
De Havilland Gipsy Moth?
Some nice and famous Supermarine Spitfire
and not less famous Hawker Hurricane (5* in the film )
Light bomber:
and on the german side:
Messerschmidt Bf109,Junkers JU 87, Heinkel He-111
At least, and as usual to not disappoint you, some other kind of birds
The radial-engined biplane that Bader crashed was a Bristol Bulldog, as is the 'un-crashed' trainer shown here (the crashed one was probably made for movie, even in 1956 nobody was likely to wreck a Bulldog for a movie). Jean-Marc, you're right about the Avro 504, but your 'light bomber' looks a lot like a Me110 to me ... like you, I'm impressed by the authenticity of this movie.