This is one of James Stewart's lesser known films made during the post WWII period when Stewart was unsure what direction his Hollywood career would take him. I recently discovered this film on cable and found it to play somewhat like a long "Twilight Zone" episode where Stewart's character who is a scientist tries to convince the pilot of a transatlantic flight that the airline's structure will collapse and that everyone will be killed unless they turn back. Fine performances by Stewart and the supporting cast make this a watchable film.