can anyone identify the myster plane?

The plane in question appears in the 1941 (summer) color release of "The Dive Bomber" Starring Errol Flynn (flight surgeon) Fred MadMurray (hot shot pilot who has NO time for flight surgeons, especially Errol Flynn) and Ralph Bellamy, the senior flight surgeon who runs the research and flight surgeon school. Errol Flynn is forced to ground a pilot (character name Tim Griffith) who suffers from burn-out, too many flying hours and physical decline. Griffith leaves the USN and starts flying for the RAF (Canadians) by flying "fairy service", that is, flying new airplanes from Los Angeles to Vancouver, Canada. Griffith shows up with a plane that I can't identify. It appears in Olive Drab paint, as opposed to the predominant yellow wing aircraft. The plane resembles a peashooter, but without the cowl-ring. Around the forward edge of the cowling, there are bumps that appear to be allowances made for parts of the radial engine, pushrods etc. There are supports (heavy cable?) that connect the wings to the fuselage. The cockpit is open with a headrest, but no canopy aside from a very small windscreen. We have ruled out, SNJ, BT, and Vindicators. If you like vindicators, here's your chance to see a bunch of them, back when they were plentiful and now there is only one. Good Luck, Good Hunting and thanks for helping identifying the mystery plane. Bruce