When the second carrier sent to bring water is killed, he falls on his chest, with no lance in his body at all. Thereafter, when Capt. Fry and others find him on the ground, he is on his back, with a lance stabbed in his forehead.
Tarzan fights with the same giant crocodile that he fought with in Tarzan and His Mate (1934). It is the same footage used.
Though Jane is meant to have bare feet at all times, she has shoes in occasional shots, which disappear in subsequent shots (for example, she climbs a ladder with shoes and arrives at the top with bare feet).
In the beginning of the picture, Rita crosses her fingers on the table while she talks about a rich uncle. In the following shot her hands are apart from each other.
When Rawlins climbs a rock after Jane, Capt. Fry is already on the rock in front of Eric. But when Rawlins approaches him, there is no one behind him any more.
Cheeta is listed in the opening credits as playing "Herself," but numerous shots throughout the film show Cheeta with male genitalia.
A number of cockatoos are seen in the film. These birds are native to Australasia, not Africa.
With Tarzan trapped in the steel cage a second elephant arrives to Tarzan's aid to bend the bars to where the Ape Man can squeeze out. Notice the elephant tusks. Notice how mobile, how easily deflected the tusks of both elephants are. Notice especially where the tusk of the elephant screen left oscillates briefly.
In the boat, Capt. Fry gives an order to Bomba who agrees saying, "Yes, bwana," but he does not move his lips.