The more films we make the more we get to deal with those pre-existing relationships. But when it comes to a movie like Ant-Man or Guardians or certainly Doctor Strange, it's just bringing to life stuff that's already been there in the comics and we finally get a chance to do it on the big screen.

I don't know that a movie like Doctor Strange couldn't have been the second or third film we made. I don't think we're doing anything in that requires past viewing, as opposed to Civil War which we wouldn't have done as the first or second movie because so much of that film is based on the pre-existing relationships between the characters.

Most obviously it [Doctor Strange] will introduce a new character who will be in play in the universe, but once you have gotten an audience to buy into a new concept then it's fun to keep, to play-off, or spin-off that concept down the line.

We have audiences that seem to be embracing whether they've heard of the characters or not.

I have a notion that there's a Star Wars out there waiting to be made, and I'm not sure it's the next Star Wars. I think it's something else that will be fresh and original.

The only thing I'll say, and I'm sure everyone says this, is stick with it. I'm not shy about telling people about the fact that my dream was to go to USC film school when I was growing up in New Jersey. I got rejected five times. You just keep going, keep going, keep going.

Filmmakers are anxious about what other people are working on.