"Me and my effects supervisor John Nelson worked with the Stan Winston studios to build practical suits and we were working with the team from ILM who, a lot of them, had worked on Transformers. We got to benefit from a lot of the technology they broke through for that production which really makes Iron Man photo-real. As you might know, I’m not a fan of CGI per-se so I was very demanding that we make the effects as photo-real as possible. Well that’s what Jurassic Park did and that’s why I think it holds up so well today. There are relatively few [CGI] shots in Jurassic Park; a lot of that stuff is robotics, animatronics. You have to mix practical with computer generated and so there was stuff we did that was seen as wasteful sometimes when we were budgeting. When Iron Man’s flying we’d send real planes up to do the choreography so that we’d get the camerawork to really look like a cameraman was following from another plane. It gives it that Top Gun look. One of the first things I did was I sat down all the people working on the visual effects and we screened scenes from Top Gun and scenes from Stealth and I said, “Why does Top Gun look so much more real?” Stealth had all of this money, technology and state-of-the-art effects and it looks like you’re watching a videogame. We figured out that a lot of it had to do with how restrained the camera was. Don’t give the camera too much freedom or choreography. Get the shading right, the lighting right and there are things you can do to make the CGI look more real. People end up going crazy and give themselves a little too much freedom in how they use CGI and if you overuse it, it draws attention to itself."