Undersea Kingdom: Chapter 5 - Prisoners of Atlantis (1936)
Ray 'Crash' Corrigan, a recent graduate of Annapolis, travels with Professor Norton, his Son Billy, and plucky reporter Diana Compton to the Undersea Kingdom of Atlantis to locate the cause of a series of earthquakes. When they arrive, Crash and his friends become embroiled in a battle between warring Atlanteans.
Directors: B. Reeves Eason & Joseph Kane
Producer: Nat Levine
Production Company: Republic Pictures
Creative Commons license: Public Domain
http://creativecommons.org/licenses/publicdomain/
