Wikipedia lists this as the first Republic serial made. Also, "Darkest Africa contained the first use of the flying special effects that Republic would go on to use in future serials, such as the acclaimed Adventures of Captain Marvel. This serial also showcased examples of the studio's model work that would be one of the factors in its future reputation and success. The destruction of the lost city in the final chapter is particularly highlighted by Cline as a "picturesque example." It was re-released to television and renamed Batmen of Africa to capitalize on the Adam West Batman craze. Hey, it's got Ray "Crash" Corrigan playing Bonga the ape: that works for me.