Trivia: The script called for several Japanese-speaking officers and a company of Japanese troops to be on the island. There were no Japanese men on the islands of Trinidad and Tobago, where the film was shot. A half-dozen who spoke the language were finally found in a Japanese emigrant community in Brazil and flown to the location to play the officers. For the non-speaking roles of Japanese troops, the company hired 50 Chinese who worked in the island's restaurants and laundries. This caused friction with the local islanders, who found it difficult if not impossible to get their clothes cleaned or to get a meal in a restaurant because most of the employees were working on the film.
Trivia: Travis, Ollis, and their mother all starred together in Swiss Family Robinson also. (Travis as Ernst, Ollis as Francis, and the mother as the mother).
Trivia: Jimmy Stewart was not the first person picked to play Lindbergh. Stewart at the time was in his mis-40's. The first person at the time the same age that Lindbergh was at the time in 1927, But the actor had been fired by the studio a few days before filming began. His name was Clint Eastwood. Stewart had to lose 25 pounds of weight and dye his hair light brown.
Trivia: When we first see Red in the cafe as he walks over to the table, if you look on the cafe wall there is a poster for a play, "I Have Been Here Before" at the Royalty Theatre starring Wilfrid Lawson. Lawson appears in Hell Drivers as Ed.
Trivia: A young Vic Morrow plays a green soldier in this film. A few years later he will be leading his own squad as a veteran sergeant in the TV series "Combat."
Trivia: Ward Bond (born 1903), who played Big Dan Halliday, was only two years older than Joseph Cotten (born 1905), who played his son Daniel.
Trivia: The scenes on the Haynes were filmed on an actual Buckley Class destroyer escort, the USS Whitehurst (DE 634). A great number of the Whitehurst crew act in the movie as the crew of the Haynes, with the commanding officer Lieutenant Commander Walter R. Smith playing the chief engineer (though on IMDB this role is credited to Robert Boon).
Trivia: There is no "That's all, Folks!" title card after the fade out. Just "The End" with white letters on a black background.
Trivia: The "Instant Girl" jar that Daffy Duck picks up towards the end of the cartoon credits the "Pierce Packing Co." This is a reference to Tedd Pierce, the writer of this cartoon.
Trivia: When Ned is launching Ralph on the bottle of champagne, the label on the bottle says "Selzer's Champagne Extra Dry" - a reference to the Warner Brothers producer Eddie Selzer.
Trivia: Judy Tyler and her husband were both killed in a road accident on July 3, 1957, just three days after production was completed and before its premiere. Elvis Presley was so devastated by her death that he refused to watch the movie.
Trivia: At the end of the cartoon, traditional Bavarian music is played over the "That's All Folks!" title card instead of the normal closing theme.
Trivia: Sir Alec Guinness won his only Oscar for his role as Colonel Nicholson in this movie.
Trivia: When Elmer Fudd shouts "Smog!" whilst summoning the various forces of nature, he is voiced by Mel Blanc, not Arthur Q. Bryan. Blanc was chosen to do this line as his scream was considered to be better than Bryan's.