- The movie was actually completed in 1950, although not released until 1957.
- The US Air Force, still taking advantage of Chuck Yeager's 1947 supersonic flight for publicity, offered his services as a stunt pilot. During a stunt involving the inverted dive of an F-86, Yeager misjudged the dive and overstressed the plane's tail, causing the horizontal stabilizer to come apart while he was too low to eject. He barely managed to pull out.
- In a later flight, his plane's engine lost a turbine disk during a routine climb, forcing a dead-stick landing.
- Howard Hughes intended to show off the latest in aircraft technology. By the time this film was actually released to the public, in 1957, the aircraft was actually obsolete.
- Features a night intercept of a B-36B by a Lockheed F-94A Starfire. Although the scene is very dark, the rarely seen retractable 20mm cannon turrets of the B-36B are visible in the extended position.
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