German film with captured Spitfire

[Bookman]

The Curtiss was flown by my friend Hans Wilhelm Schopper, a great opportunity as his flight pay was supplemented by the film company. We had quite a laugh when he related exploring the cockpit while flying. He sniffed a tube, learning it was a relief tube! He also flew the spitfire, admiring it all his days. Extra footage was made eventually appearing in a segment of the weekly show, to the amusement of his family. Our mutual friend Herbert Kaiser also flew the spitfire. Both lost contact in 1942, and I was able to reconnect them in the early 1980's. The film was "kampfgeschwader Lutzow. A fictional unit.