"It's tricky," the director told IGN Movies at Comic Con. "I know Edward, and I dig the guy's talent tremendously. He's always been a very great guy...I'm sure that however this comes out, it's going to be something that's amenable to both the filmmaker and the studio."
"I know that we faced the challenge of recasting with Don Cheadle and Terrence Howard, and although I think breaking continuity is always a challenge and should be avoided whenever possible, it is the reality of the movie business that sometimes things don't work out."
When asked about whether he has any plans on getting involved with The Avengers and the other upcoming Marvel Studios movies he said, "I'm here because of my success with Marvel for the most part. I've felt tremendous creative support, and as they cut their teeth as a studio, I cut my teeth as a big filmmaker. So we've grown a lot together and I am completely invested in the success of that studio."
"I really want to see the Iron Man stuff play out really well through these other movies and hopefully collaborate in the future."