Undersea Kingdom (1936)

Briny Deep: I'm gonna fry a parrot one of these days.

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Unga Khan: Recall the troops. With those religious fanatics under control, I'll have no more interference with my plans to destroy the upper world!

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Diana Compton: Are you actually proposing to move this huge metal tower? Why?
Unga Khan: Because it contains all the machinery that has enabled me to harness the atom, the most destructive force known to science. Once I reach the surface I will become the ruler of the upper world... or destroy it!
Diana Compton: Professor Norton would never agree to such a fiendish plan!
Prof. Norton: He's insane if he thinks I will.
Unga Khan: We have ways of persuading people to do our bidding.

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The familiar trumpet call played at horse races in the U.S. to announce Post Time, known as First Call, is used to rally the troops in Chapter 4: Revenge of the Volkites . Though it may sound to some comic and strangely out of place, it was actually a military bugle call that alerted soldiers to prepare and assemble for a formation.
An edited, 100-minute long feature version called "Sharad of Atlantis" was made for television
When Republic Studios learned that Universal was producing their "Flash Gordon" serial, they rushed this serial, using similar plot elements, into production.
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