Jungle Emperor Leo is a big-budget film adaption of the last half of the Jungle Emperor manga. Observed from the Leo the Lion series, the movie covers the following episodes: Leo Becomes a Father (#5), The Green Plague (#25) and The Eternal Mount Moon (#26). However, the movie just follows the story from the Jungle Emperor manga. Some question why the film did not use the version of events seen in Leo the Lion. This may be partially explained for the fact that in Western world, the original manga is much less known than the first tv -series.