If they really want to make a good Fantastic Four movie they need to go about it differently.
First, you start with a Doom movie. Doom is really as important to the franchise as any of the four, but his origin story just doesn't gel with theirs. Both movies tried to tie the origins together, which just didn't work. He's sort of like the reject of the Fantastic Four which just isn't right.
So, you make a movie focusing on Doom. Have Reed and Sue in their as ancillary characters to establish Reed and Victor's grudge, but have the main focus be on Doom's conquest of Latveria. Sort of an anti-hero. He legitimately wants the best for the people of his country, but believes that him having absolute authority is what's best. Easily the best villain in Marvel's history,so why fuck around with his origin so much? Have a comic writer like Hickman contribute to or at least approve the script.
So then you have the Fantastic Four movie. You already introduced Reed and Sue at least, so you have a little less in the way of exposition to do. But don't put Doom in it as the villain just yet. Instead use Annhiulus as the villain. Change up the origins a little bit. Instead of Reed Richards just trying to go to space or to the negative zone just because he can, have it be in response to some perceived threat from the Negative zone. This way, the Fantastic Four are actually doing something heroic instead of just fixing the mess they created in the first place with their mucking around.
So, their is a threat incoming from the negative zone, and the US is vastly unprepared to deal with it. But... there is someone who is equipped to help the now empowered Fantastic Four respond. Reed has to go to his old roomie Doom to form an alliance. This allows us to further explore the relationship between Doom and Reed as they begrudgingly work together to mount an invasion of the negative zone. And naturally they succeed and save the day and blah blah blah, and in the process Doom realizes how he can use what he finds in the negative zone to further his own goals.
This leads to a third movie with Doom flexing his muscles on an international stage. And, naturally, the only mind capable of opposing him is Reed Richards. So now the conflict between Reed and Doom that has been building for 2 movies will come to pass. And it won't feel rushed or force. It will feel well built and climactic.
So simple. Fox can thank me later.







