Sylvester Stallone Talks Arnold Schwarzenegger's Acting on 'Expendables' (VIDEO)

Sylvester Stallone says working with Arnold Schwarzenegger on 'The Expendables' was 30 years in the making.

"I've tried to work so many times with him ... I've always been turned down for one reason or another," explains Stallone when he visits 'The Tonight Show' (weeknights, 11:35PM ET on NBC).

This time, Schwarzenegger readily accepted the offer to appear in a big scene with other iconic action heroes. "Just to hear you and Schwarzenegger have a conversation --" says Jay Leno, launching into a Schwarzenegger imitation. "Just to watch you two talk is fantastic."

Stallone joins in with his impression of Ah-nold, and says the governor can imitate him, too. As the 'Expendables' director, Stallone was a little worried that Schwarzenegger's acting skills would be a bit rusty. But, as he joked in mock-Arnold: "I kill cue cards."