A man known only as Robur, shoots down and takes on board his flying ship Prudent, his daughter Dorothy, her fiancé Evans, all of whom were exploring a volcanic crater in their balloon, along with US government agent Strock, who had hired them to look for evidence of an eruption. The supposed eruption was caused by Robur working on his airship, who had also inadvertently broadcast a biblical passage over a voice amplifier, stirring religious fears among the citizenry of the nearby town. Robur has been traversing the globe in his airship, the Albatross, with a goal of forcing peace on the world by virtue of his superior military capabilities. He has a loyal crew of like-minded, equally fanatical idealists. The captives learn how his ship operates, and about his technical advances, including generation of electrical power by crossing "lines of magnetic force", which is a quaint but accurate description of a dynamo's operating principle. The captives wish to escape, but don't fully trust Strock, who appears at times to side with Robur. After saving Evans' life, Strock explains that his oath of loyalty to Robur was insincere, and that as a captive, he feels no compunction to behave as a gentleman. Robur proceeds to destroy various nations' means of making war, but a desert conflict wounds Robur and damages the Albatross. After the airship succeeds in escaping and Robur recovers, the ship anchors at an island for repairs, where the captives rig the armory to explode. All escape down the anchor line except Strock, who follows while being shot at by the crew. First Strock, then Evans, work at cutting the anchor line, finally releasing the airship, which is damaged beyond repair moments later when the gunpowder explodes. Robur orders his crew to abandon ship, but they choose to ignore his final order, and gather in his quarters while he reads from Isaiah 2:4, reminding them of their pledge to try to rid the world of war. The ship, along with Robur and his crew, crashes into the ocean and explodes, while the captives watch, injured but alive, from the shore.
Difference from the Novels
The opening scene of the movie is in a fictionalized Morgantown, Pennsylvania whereas the novel took place in Morganton, North Carolina.
Cast
Vincent Price as Robur
Charles Bronson as John Strock
Henry Hull as Prudent
Mary Webster as Dorothy Prudent
David Frankham as Philip Evans
Richard Harrison as Alistair
Vito Scotti as Topage
Wally Campo as First Mate Turner
Ken Terrell as Crewman Shanks
Production
The film was an attempt by American International Pictures to create a prestigious epic adventure along the lines of Around the World in 80 Days. While it boasted a larger cast and more location work than was the norm for AIP the film still utilized footage taken from other films: The opening miniature shot of Elizabethan London was from Laurence Olivier's film Henry V, standing-in for Victorian London, with the Albatross airship superimposed over the top of the scene; additional shots of Albatross destroying both sides in a naval engagement were created in the same manner, reusing Battle of Trafalgar footage from the end of That Hamilton Woman. The film also reused footage from Zoltan Korda's The Four Feathers for the airship's north African battle engagement. The script combined elements of both of Jules Verne's novels, Robur the Conqueror and its sequel, Master of the World. Robur, genius, inventor and, in this instance, creator of the powered heavier-than-air craft Albatross, with his hand-picked crew, chooses to use weapons of war to force the governments of the world to lay down their arms and live in peace. The special effects crew included Wah Chang and Gene Warren. Master of the World was Charles Bronson's first foray as the heroic romantic leading man in a theatrical film; he had usually appeared on television or played supporting roles in movies. The studio originally announced that Price's co-star would be Mark Damon, his co-star from House of Usher. Shortly thereafter Damon was replaced by David Frankham. Veteran actor Henry Hull came out of retirement to appear in the cast. Hull had portrayed the Werewolf of London a quarter of a century earlier. Vincent Price is reported to have considered the role of Robur as one of his personal favorites.
Proposed sequel
According to Filmfax magazine, a sequel to Master of the World, to have been called Stratofin, was considered by AIP. A concept model of the Terror, Robur's new land-sea-air vehicle, was built. The film, however, was never made, reportedly due to the manner in which Richard Matheson and his cohorts combined various Jules Verne story elements from both Robur novels for Master of the World, which would have caused insurmountable continuity issues between the first film and the sequel.
