Sometimes worst enemies like a Mohammed Ali and Joe Frazier that's what makes you fight so hard. Without them they never would have achieved greatness.

The idea of Rambo is kind of intriguing as a closing chapter. When you shoot a film as a sequel to do another sequel it's a whole other tone. But when you know it's the final chapter you try and put in there as much emotion, understanding and closure as you can. So, whereas Rocky is a lighter character and optimistic, Rambo is much darker.

There are endless exercises for arms, but the basics are best-chinups and pushups.

A lot of time people are like, "oh my God, you're stereotyped." Good, then you're known for something.

That's the hardest thing about doing sequels - you've lost the element of surprise.

The one thing in my films, I only kill people who need to be killed, or killers killing killers. And I believe that the violence is very justifiable.

I know I can't play funny roles in movies. I tried, and it didn't work.