I love those Keystone bombers - if the NMUSAF really does have parts of two of them, I hope they do a restoration/recreation of one someday.
The movie's IMDB page (
http://www.imdb.com/title/tt0024100/ ) lists the filming location as Pearl Harbor, Hawaii, but the sinking of the destroyer (a
real one, the ex-USS Moody DD-277 - not a miniature!) was filmed in San Pedro, CA according to this wreck divers' page:
http://www.cawreckdivers.org/Wrecks/moody.htm
Be sure to check out the video of the sinking - they had some pretty brave stuntmen!