At the end of the day the question comes, what are you doing for the world? You have to try to do something that's going to add something positive.

At the end of the day, I just want a movie that's great, that people are going to love and laugh at and be affected by, and also have an emotional journey.

I'm just an enormous British comedy fan.

We didn't used to be so precious about women in comedy back in the old days.

For years, it's driven me crazy that women don't have better roles, especially in comedies. I know so many funny women but I always felt... misogynist streak is too strong a term - but a dismissiveness.

What I do as a director is really create a safe environment that everyone can feel very comfortable in and experiment within so that they don't hold back anything. You never ever want someone to go, 'Oh I shouldn't have done that.' There isn't anything you shouldn't try. If it's terrible, who cares?

I'm more of a science head, so I was like, how would a guy use - if there were ghosts - technology to bring them back?