The Lost Jungle (1934) is a Mascot 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.

Plot
Clyde Beatty, an animal trainer and circus star, leads a search for his missing girlfriend and her father who were on an expedition looking for a lost tropical island. Using a dirigible as his mode of transportation, Beatty and his band head off in search of the missing explorers only to crash their airship on the same island their friends are located. Battling wild animals and a gang of greedy men searching for gold, Beatty and his party must rescue his girlfriend and father all the while trying to escape their jungle island. Feature version of the same-title serial of the same year, with refilmed sequences substantially altering the plot and characters of the original chapterplay.

Cast
Clyde Beatty as Clyde Beatty
Cecilia Parker as Ruth Robinson
Syd Saylor as Larry Henderson
Warner Richmond as Sharkey
Edward LeSaint as Captain Robinson
Wheeler Oakman as Kirby
Maston Williams as Thompson
Max Wagner as Slade
George ‘Gabby’ Hayes as Doctor – Dirigible Passenger