Arnold Schwarzenegger and Sylvester Stallone, June 30, 2012. (WENN.COM)

Movie hardman Sylvester Stallone is finally suffering from his decades of action film roles as years of gruelling stunt work are taking their toll on his body.

The Hollywood veteran, 66, took a volley of blows in the boxing ring for his Rocky franchise, endured tough workout regimens to stay in shape as crack special forces soldier John Rambo, and was battered by explosions in The Expendables.

But his realistic roles are catching up with him and his fellow action star Arnold Schwarzenegger, as they are now forced to make frequent trips to doctors to get various body parts "fixed".

Stallone tells Total Film magazine, "It comes at a price. Arnie must have lifted a million pounds of weights in his life but it comes at a price. There's only so far you can push the machine, then it's a case of taking it to the mechanic to get this part fixed, or that part fixed. These days that happens more and more! But I still love the challenge. I get there (on set) and I go, 'Let me jump off, let me go into the water...'"

The actor is also adamant he'll continue to shun modern hi-tech filming methods to achieve realism in his action scenes, adding, "I don't know how those guys do that green-screen work - I've done a bit and it drives me crazy. I like the heat of an explosion in my face, a hunk of tin flying past my head 30ft from where it should've gone! It's hard to get the emotion without it."