If you have superheroes or characters that exist in the same world, and you're doing movies of them, wouldn't it be fun to put a couple of them together in one movie? Audiences love that. It's a natural thing to do that.
Stan LeeThe clichรฉ I tried to avoid was I hated "teenage sidekicks." I always figured if I were a superhero, there's no way on God's earth that I'm gonna pal around with some teenager. So my publisher insisted I have a teenager in the series, because they always felt teenagers won't read the books unless there's a teenager in the story; which is nonsense.
Stan Lee