Revealing mistake: At one point in the movie, dumptrucks are sent in to contain the Mighty Peking Man. You can tell that these, like most of the movie are toys.
Revealing mistake: When the Mighty Peking Man is on the ship, you can tell that the ship and the Mighty Peking Man are fake.
Revealing mistake: The girl climbs up a tree at one point, and instead of filming her climbing down, the scene where she climbed up was played in reverse.
Other mistake: A jungle girl is found. She has been lost in the wild since she was a little girl. She must get regular visits from the Avon lady because she has on perfect makeup including lipstick.