The Lost Jungle (1934) is a Mascot Pictures movie serial.

A semi-sequel to this serial, Darkest Africa, was released by Republic Pictures in 1936.

Republic was made from a merger of several companies, including Mascot, which became the B-Western and serial production arm of the company, as well as providing them with a studio.

In an unusual move, a feature film version was made simultaneously with the serial by re-filming several principal scenes with different dialog, and several other principal scenes altogether new, particularly the ending, thereby creating an essentially new and different story.

This article about an adventure film is a stub.