Filmmakers are anxious about what other people are working on.

Let's use that to make as interesting and different and unique a story as possible and not just stay with the same thing.' And this movie is certainly the embodiment of that.

Sometimes you can have a great scene but it just doesn't need to be in the movie. If it's not progressing the plot, not progressing the story, not adding to the momentum, or if it's not purposefully serving a breath - it has got to go.

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.

The Avengers films, ideally, in the grand plan are always big, giant linchpins. It’s like as it was in publishing, when each of the characters would go on their own adventures and then occasionally team up for a big, 12-issue mega-event. Then they would go back into their own comics, and be changed from whatever that event was. I envision the same thing occurring after this movie, because the Avengers roster is altered by the finale of this film.

I love female heroes too and would love to bring many more to the big screen in the future.

I don't think it's a mistake to put every great idea into the first movie, because I've always said there won't be a second movie if you go 'we'll hold back these ideas for another one.