The film is based on the book Adventure in Diamonds by David E. Walker, which chronicles the true events of May 12–13, 1940.
: At the time of its release, the Guardian called it an "unusually effective war film" because of its historical grounding. However, The New York Times found it "lukewarm" compared to the actual intensity of the real-life incident. Operation Amsterdam(1959)
: With the German invasion underway, British intelligence launched a secret operation to recover approximately £10 million in industrial diamonds from Amsterdam. The film is based on the book Adventure
The 1959 British war film is a dramatization of a high-stakes, real-world mission to prevent the Nazi war machine from seizing industrial diamonds during the 1940 invasion of the Netherlands. Historical Background However, The New York Times found it "lukewarm"
: Reviewers from Time Out describe it as a "brisk, no-nonsense" movie that prioritizes narrative movement over deep character development. Operation Amsterdam (1959) - IMDb
: The operation was led by Dutch diamond expert Jan Smit (portrayed by Peter Finch) and British Major Dillon (portrayed by Tony Britton). They were transported to the Dutch port of IJmuiden on a British destroyer. Narrative & Cinematic Style