"Captains of the Clouds" (1942) is a Technicolor flick starring Jimmy Cagney, Dennis Morgan and Alan Hale. It's about a group of Canadian bush pilots who decide to join the RCAF. Some great shots of civilian float planes early in the flick and later a variety of RCAF aircraft: Harvards, Ansons, Battles, Hudsons, and some others I couldn't ID right off. I got this movie from Netflix because I'd never heard of it before and I liked the main actors. Here are a few screenshots.