We know it's being referred to as the robot boxing movie [Real Steel], but truth is, 70% of the movie is the relationships.

The dozens of people working on this at Digital Domain, they knew that you couldn't get away with almost photo real, because we had real real in the room. You have real real in the cut every four or five shots, so you have this constant yardstick built into the footage by virtue of there being no real robot there. So it became the standard of photo reality that the VFX team had to match.

Because I've never made this kind of movie before, so I've never even been to Comic-Con. And Hugh and Evangeline keep telling me, 'Oh, my god... This is such Comic-Con fodder. We're going to have such a fun summer!' Is this the kind of thing they show? That length?

As opposed to a movie [Real Steel] where everything feels fantastical, it was really important to me, and I recognise it's not the first movie with robots in it, but that blend of naturalism in performance, writing and design with the futurism of this sport. That was the idea.

I would say, while I think audiences are savvy enough, I think that the effects work in the teaser is quite a bit more than presentable. I think they look good and representative of the film. The harder thing with the teaser, interestingly enough is, how much to show.

One that we can admire aesthetically and participate viscerally in. So the goal here, and we've had some early, small screenings, what seems to be kind of happening is that you come in thinking you're going to see a cool robot boxing movie, you don't expect this emotional underdog, father/son movie. And it's not one that's soft and overly sentimental, but hopefully it's one that's poignant.

There is a reality to the way the actors play the scenes, given that there is a real, animatronic, moving robot in the room. So the level of nuance and realism in performance was higher because we built the real ones, and it keeps the visual effects guys honest.