When I was a kid there was a very short time I was a comic book fan (even though I do read the The Walking Dead books now, and did collect Marvel cards for years as a child). In comic books certain superheroes would make cameos and I could never understand why certain heroes wouldn't crossover to over other superheroes storylines.As I am older I know realize there were two separate rival companies and there is no way possible they would ever cross promote, even though it would be the coolest thing ever, and there would be a ton of money made.

As I said, this is probably no way possible but a movie of this magnitude would be epic and knowing what I know now about Marvel and DC being competitors, it makes it even more intriguing.