Avengers Vs. Justice League Fan Trailer Imagines Worlds Colliding

Superhero movies would have to go the way of the Western — like Steven Spielberg predicts — before Warner Bros. and Marvel Studios would ever agree to a cinematic crossover.

Until then, we'll have to enjoy this fan-made trailer, edited by Live Action Trailers, featuring Earth's Mightiest Heroes going up against the Justice League.

Check out "Avengers vs. Justice League : The Worlds Collide" in the video below.

Who would win? Share your thoughts in the comment section below.

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Batman v. Superman: Dawn of Justice is now playing in theaters.