Here’s a 1969 Spider-Man film, perhaps the earliest ever, produced by writer Donald F. Glut. Glut later penned the bestselling novelization of Empire Strikes Back along with many other books, comic books, screenplays, and cartoon and children’s TV scripts. This film was shot during his days as an amateur filmmaker associated with Forrest J Ackerman’s Famous Monsters of Filmland, and was one of a series of superhero adaptations Glut made, including Captain Marvel, Superman, the Human Torch, the Spirit, Spy Smasher, Batman, Rocket Man, and Atom Man. Posted on YouTube, the film appears to come from a 2-DVD set of Glut’s amateur films called I Was A Teenage Moviemaker released by Epoch Cinema in 2006. For more about Glut, visit his official website at http://www.donaldfglut.com/.
I notice that Dr. Lightning seems to combine aspects of Doctor Doom with Electro and others.