The Dawn Patrol (1938)

If you thought Errol Flynn was only good at laughing in the face of danger as Robin Hood and various pirates, think again. Here he plays a conflicted squadron leader who must send unprepared pilots to their death. The amazing cast includes Basil Rathbone, and David Niven. The very non-CGI aerial footage was likely recycled from the 1930 original version, but is still breathtakingly real.