- A scene of an aerial raid on a German troop train was filmed but not used. It later turned up as part of Legion of the Condemned, The (1928).
- The first movie, and the only silent movie (in the 20th century), to win the Academy Award for Best Picture.
- The entire score was composed on a Wurlitzer pipe organ.
- Richard Arlen, who's character is a fighter pilot, had actually been a pilot in World War I (though he never saw combat).
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