The Lion Has Wings (2015)

Royal Air Force squadron leader W.C. Richardson (Ralph Richardson), his wife (Merle Oberon) and a relative, Bobby, placidly ignore the military rumblings from Nazi Germany in the late 1930s. Only after the German takeover of Austria, Czechoslovakia and the invasion of Poland do the Richardsons accept that there must be war. Mr. Richardson and Bobby throw themselves into the first air raid assaults, while Mrs. Richardson and Bobby's girlfriend, June, volunteer for work at the first aid station.