: 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 film is based on the book Adventure in Diamonds by David E. Walker, which chronicles the true events of May 12–13, 1940.

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