The superheroes of Marvel Comics have been headlining movies for decades. We're not just talking about the last few decades, either, when the Marvel Cinematic Universe came to fruition. The juggernaut franchise, created by Marvel Studios, has broken every box office record there is to break, grossing a collective $31 billion (and counting!) in the years since its 2008 inception with Iron Man. 35 movies into that franchise, it shows no signs of slowing down.

But again, the heroes of Marvel Comics were on our screens long before that, with beloved characters like Spider-Man and the X-Men flying the flag for comic book movies at a time when there weren't all that many. And, before that, Captain America was headlining his own TV movies, while Man-Thing became a horror legend.

Even in today's day and age, Marvel Studios doesn't make all of the movies involving Marvel characters. 20th Century Fox produced the Fantastic Four...