The King of the Kongo (1929) is a Mascotmovie serial. It was the first serial to have sound,[1] although only partial sound ("Part Talking") rather than the later (and obviously now standard) "All-Talking" productions with complete sound. The soundtrack is now considered to be lost. [2]
Independently, the two protagonists, Diana Martin and Secret Service agent Larry Trent are searching the jungle for missing relatives, her father and his brother. Tied up in this plot are ivorysmugglers and a lost treasure hidden in the jungle.
The King of the Kongo was the first film serial to have any sound element. Larger serial-producing studios (for example, Pathé and Universal Studios) were reluctant to change away from silent production (although Universal released their own Part-Talking serial, Tarzan the Tiger, later in the same year) while smaller studios could not afford to do so. Legend has it that producer and studio-owner Nat Levine carried the sound discs in his lap from Los Angeles to New York City, by train and aeroplane, for them to be safely developed. For financial reasons, these discs could not have been repaired or replaced if anything had gone wrong.[1] This was two years after the first Part-Talking film, The Jazz Singer (1927), had been released and a year after the first "All-Talking" film, Lights of New York (1928).
Two versions of this serial were released, a "Part Talking" version and a silent version intended for theatres not yet equipped for sound.