Supercar (TV series) series proposed to the BBC by Hugh Woodhouse that was never produced. Anderson would later claim that the whole point of having a series based on a vehicle was to minimize having to show the marionettes walking, an action which he felt never looked convincing. The plot of the show consisted of Supercar, a vertical takeoff and landing craft invented by Prof. Rudolph Popkiss and Dr. Horatio Beaker, and piloted by Mike Mercury. On land it rode on a cushion of air rather than wheels. Jets in the rear allowed it to fly like a jet and retractable wings were
Gerry Anderson his goal of making live-action film and TV drama. During the production of "The Adventures of Twizzle", Anderson started an affair with secretary Sylvia Thamm and ultimately left his wife and children. Following his divorce from his first wife, Anderson married Thamm in November 1960, while he was working on "Four Feather Falls". AP Films' third series was the children's western fantasy-adventure series "Four Feather Falls" (1959–60). Provis left the partnership, but the company retained the name AP Films for several more years. "Four Feather Falls" was the first Anderson series to use an early version of the so-called "Supermarionation"