Hard for me to understand why so many week ratings. This film has all that makes a good movie and a good adventure story. Great black and white photography shot on location in South Africa, excellent British actors (Jack Hawkins, Dennis Price, Bernard Lee), good story...and as of 2022 this 72 years old film does not at all appear dated and had lost nothing of its original power - unless you expect robotic monsters, flaming explosions, sub-second cuts and gallons of blood.
And this is not only an adventure in Africa, but the slowly unfolding story of human duplicity, greed and even a tragic romantic triangle.