All I thought about when I wrote my stories was, "I hope that these comic books would sell so I can keep my job and continue to pay the rent." Never in a million years could I have imagined that it would turn into what it has evolved into nowadays. Never.

I thought it would be great to do superheroes that have the same kind of life problems that any reader - that anybody could have.

I have always tried to have a message, not to be a preacher, but a message that shows it's better to be a good guy than a bad guy, and I try to make it clear that doing the right thing is more attractive than not.

I remember when I was a kid, I loved Sherlock Holmes. I thought Arthur Conan Doyle was one of the greatest writers, because I felt I knew Sherlock Holmes. He existed to me. When I went to England the first thing I did was go to Baker Street to look for his house. I think you've got to try to make all of your characters as empathetic and realistic as possible.

No matter how good a story is, if you're at a newsstand and you see a lot of comic books, you don't know how good the story is unless you read it. But you can spot the artwork instantly, and you know whether you like the artwork, whether it grabs you or not.

I think there's the element of the excitement of what I'm going to see, and with the special effects where you see men flying and walking through walls and shooting flame or whatever they do, especially the younger audiences, which make up a bulk of the moviegoers, they love that sort of thing.

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.