When Jungle Jim finds the captain's dog tags, he reads, "A.R. Kingsley, Captain, U.S. Army". However, a shot of the dog tag before he reads it shows that the only thing printed on it was "A.R. Kingsley" followed by a serial number.
Early in the movie, this newspaper headline "Officer Beleived Victim of International Conspiracy!" is shown. "Believed" is misspelled.
When Jungle Jim is fighting the gorilla on the suspension bridge, a waterfall is visible in the background but the water isn't moving.