But before these ghouls come back from the dead, let's look at everything Marvel learned from them.
Step One: Shared Films Become A Cynical Money-Grab
Marvel fans now know that their moviegoing experience is far from over after the movie is, and they'll sit through $100 million worth of credits just so that they can see Hawkeye's bow show up in Robin Hood's tree fort. Bringing their most famous stars together has been super lucrative for the franchise, but it's nothing new. After all, Marvel expects us to believe that the Norse god of storms would be buddies with a mutated super-scientist, so is it really that much of a stretch that our grandparents enjoyed a once-dead pharaoh hanging out with a stitched-together corpse? Of course not. Except that for them, it started as a big joke.
During one long lunch in '41, Wolf Man screenwriter Curt Siodmak, needing more money to buy a friend's car, jokingly pitched to producer George Waggoner "Frankenstein Wolfs The Meat Man, I mean, Meets The Wolf Man" as the worst idea he could think of. A couple days later, Waggoner dropped by to let Curt know that he was going to be working on Frankenstein Meets The Wolf Man, and suddenly the writer found himself trying to make a serious script out of Wolf Man and Frankenstein's Monster teaming up to chase down Dr. Frankenstein for the secret of immortality. An important lesson to budding screenwriters: Never joke about your worst idea. It will make you rich.
Pictured: What Siodmak wanted to do to Waggoner while writing the screenplay.