The Day The Earth Got Stoned (1976) - Same Movie?
I saw "J-Men Forever" on USA Cable's "Night Flight" show in the early 1980's. It was a send-up of the old Republic serials ("Spy Smasher", "...Captain Marvel", etc.) hilariously mis-dubbed and put together by members of the old Firesign Theater. The villain, "The Lightning Bug" was voiced by California DJ Machine Gun Kelly. The difference in appearance of the villain from serial to serial was explained by making The Lightning Bug an expert in disguise.
Years later, I read about "The Day the Earth Got Stoned". The description was a detail-for-detail copy of the description of J-Men Forever. At the time I assumed it was the same movie with an alternate title. (In fact, I guessed the guy doing the review forgot the title and just made up "TDTEGS", figuring the movie was so minor and obscure, who'd ever know the difference.) Now I see The Internet Movie Database has separate listings for the two titles, and there's even a difference of three years in the release dates. I have to say this: Either TDTEGS was an early, preliminary effort that developed into J-Men Forever, or there's one hell of a copyright infringement lawsuit waiting to be filed.
One of the commenters for "...Stoned" brought up this joke in the dubbing:
"Say, isn't that Leonard Nimoy?"
"Can't tell... I can't see his ears?"
Sound familiar?