Sylvester Stallone will only stop making movies when he can no longer walk.

The 64-year-old Hollywood star - who shot to fame playing the title role in the 'Rocky' franchise - doesn't feel old and insists he is in great shape for his age.

He said: "I still feel good physically and I'm in shape. The day I can't walk is the day I quit movies. Just because society says I'm old doesn't mean I am."

The father-of-five - who has been married three times - admits his career is still important to him, but his family is now a much bigger priority.

Stallone - whose new film 'The Expendables' is out in August - explained to The Sun newspaper: "When 'Rocky' happened, 35 years ago, I had blind ambition. My career was the most important thing in the world. But I had a lot of problems in my personal life early on.

"I'm a different person today. I am totally dedicated to my family and because of that I don't feel like I have as much riding on the success of 'The Expendables' that I had with 'Rocky'. I don't have the ambition I used to have."

Although the 'Rambo' star is happily married now to former model Jennifer Flavin Stallone, he didn't always think he was cut out to be a husband.

He said: "It took me a long time to be convinced that marriage was right for me because I've come from a long line of broken marriages. My parents divorced and I had two broken marriages myself."