Fan CastingX-Men vs. Fantastic Four

Johnny Storm goes supernova while trying to apprehend Molecule Man. This results in him accidentally blowing a hole in Manhattan and in response to the carnage, the government is forced to introduce the superhero registration act. The heroes from both teams would be split on opposing sides, and one of the key fights features Wolverine taking on Mr. Fantastic in a battle that would end with Reed Richards pinning Wolverine down, extending his hands until they're one molecule wide, and then, using them as scissors to cut Logan's arms off. After a series of equally intense events, the heroes eventually make peace with one another, and the post-credits scene would've set up the next film with the tease of a Super Skrull invasion.