The Matterhorn was an actual set location and actors and crew were required to climb the summit for filming.
James MacArthur made the film during his summer break from Harvard University where he was studying history.
The Matterhorn Bobsleds attraction at Disneyland Park at the Disneyland Resort in Anaheim, California is inspired by this movie.
The filming of this movie is wonderfully chronicled in Walt Disney Presents/Perilous Assignment.
James MacArthur, Janet Munro and director Ken Annakin would all reteam the following year on Disney's Swiss Family Robinson (1960).
Helen Hayes: James MacArthur's mother, appears uncredited as a tourist leaving the hotel where Rudi works.
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