Revealing mistake: In this scene we see Cheetah jumping down from a tree to the ground. In the next shot we see Cheetah and a circle of light moves, which indicates they were using a mirror or even a light for extra lighting to brighten up the shot. This happens very briefly and is very noticeable.
Tarzan Triumphs (1943)
1 revealing mistake - chronological order
Directed by: Wilhelm Thiele
Starring: Frances Gifford, Johnny Sheffield, Johnny Weissmuller, Stanley Ridges
Continuity mistake: In this scene we see Sandra being helped to escape by one of her village friends. We see a long shot of them climbing up the rocky terrain but wait, look closely, the villager is Tarzan and you see the distinctive black loin cloth. The villager had white clothing on.