[on replacing Sophia Bush on Terminator 3: Rise of the Machines (2003)]: It was heartbreaking because initially I wanted Claire Danes and then sort of like Hollywood deal making silliness, it didn't work out. So then I started casting for the part and I found this actress, Sophia Bush, who I thought was fabulous, and still do. And I cast her in it. I was more excited about casting her than I was anyone else in the movie. I thought I'd made a real find. And after a week of filming it became clear that she was too young. She was nineteen and the other actors were twenty-two. And there's just a difference, and three years at that age is a big difference. And I tried everything I could to make her look older, but ultimately the camera doesn't lie. So I had to replace her and it was heart breaking because it was a huge break for her...I think she's unbelievably talented. The only time in my life where I had that happen, where I had to make a change like that.

[why Terminator 3 worked] Arnold, Claire, Nick and Kristanna made Terminator 3 a fun film to make.

Biologically, yes, he is John Connor, and he's the same person technically, but from a character point of view, he's a very different character now. So I felt I wanted to throw out all assumptions and start from scratch and say who's the best actor to play this part. - [about his reason for replacing Edward Furlong with Nick Stahl in Terminator 3: Rise of the Machines (2003)]

Linda Hamilton is too important to the franchise to stick her in as the third wheel. So then I realized, you know what, it's actually better if she's not in the movie. - [about his reason for avoiding Linda Hamilton in Terminator 3: Rise of the Machines (2003)]

I would say that if there was one person I'd be nervous about showing this movie to, it's him (James Cameron). - [on his view about showing Terminator 3: Rise of the Machines (2003) to James Cameron]

The heart of the film is the story. - [about Terminator 3: Rise of the Machines (2003)]

But you can also go out and hire some kid from MTV to direct a movie and tell him how to do everything and then you wind up with some shlocky picture.

Making a movie is difficult enough to sort of have a premeditated length that you're going for. I don't know a single filmmaker on the planet who does that.

I'm just having read on the Internet, there's been a lot of chatter about you know, the length and I'm reading all these people bitching about it.

You don't come to work going, 'Oh my God, I've got all this money I have to worry about'. You come to work going, 'I need more time and more money'. Because whatever resources you're given, you're always trying to push the envelope. There's no prize you get when you come back to the studio at the end and say here's your refund of what we didn't spend.