Since even before Marvel changed the game and decided to combine all their superheroes into one cohesive universe, fans have been begging for crossovers.
Of course, with film rights being tied up at various studios, most superheroes will only meet in fan fiction.
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But fan fiction is a lot more awesome than it used to be! Just check out this incredible mashup trailer that combines just about every superhero movie and TV show (and a couple video games) into one amazing-looking movie trailer!
Warning: you WILL get a nerd boner! So watch with caution (below)!