Some animal scenes in the jungle (such as a charging rhinoceros or a crocodile being killed) are inserts that are not in CinemaScope format. They are stock footage probably taken from an old documentary (such as Mondo cane (1962)).
The original film version of Diamonds of Kilimandjaro (1983) ran at 83 minutes. However, the French censors did not allow the film to air in France. To bypass the censors, the French Production company Eurociné deleting several scenes and sent Olivier Mathot to shoot different footage with the same actors (and also used new actors to add a few characters). The film was then repackaged as "Les Diamants du Kilimanjaro" and ran 95 minutes long. This film was then exported around the world, but was still never shown in France. The original Spanish version (83 minutes) is only available in Spain.