It's highly likely you don't know this, but there's this guy called Alex Luthor who uploads pretty cool videos sometimes on YouTube. This time he beats it all by making a Transformers VS DC Marvel trailer, cleverly using the shared cube and Tesseract respectively to intertwine the two worlds. Combining the two forces known as 'awesome superhero cinematics' and 'Michael Bay', the trailer results in an overload of explosions, team-ups, and just some badass stuff. Check it out for yourself below.
Not only does this dude have some insane editing skills, the result is pretty much as much action, superheroes, and (mainly) explosions one can handle in 5 minutes. But it's pretty, damn, cool.