Brothers Roy (James Hall) and Monte Rutledge (Ben Lyon) enlist in the Royal Flying Corp and end up flying dangerous missions over England and France in the early days of aerial combat. Howard Hugh's film is best remembered for its extensive aerial footage, involving dozens of aircraft including period-correct Royal Aircraft Factory S. E.5s, Fokker D. VIIs, and a 1920s Sikorsky S-29-A mocked up to look like a German Gotha bomber. The flying scenes (real and in miniature) are outstanding with the attack on the Zeppelin over London and the crash of a large bomber standouts. The epic production, during which several planes were destroyed and three pilots/crew lost their lives, was said to be the most expensive ever (although this may have been marketing hyperbole), partly because it was caught in the silent-to-talkie transition period and needed to be extensively reshot before release. The simplistic 'human story-line' about the brothers, one heroic, one cowardly, is much less memorable with a lot of stilted dialogue, artificial-sounding bonhomie, and trite romantic melodrama (involving up-right Roy's pining after Helen (Jean Harlow), a peroxide blond vamp of dubious morals who seems more interested in variety than sobriety). The pre-code film contains some expletives (shocking then, tame now), Harlow wears some clingy and revealing dresses at times, and the scene in which a character is shot in the back is extremely real looking ( for an era when most 'shot people' simply put a hand on their chest and fell over wearing a shocked expression). A must see for fans of both vintage films and of vintage aircraft.