With his high-octane action film The Expendables opening nationwide this weekend, writer-director-star Sylvester Stallone recently told The Los Angeles Times that he has an idea for a sequel, if the first film proves to be a success.

"If this does perform, I think it will open a little more liquidity in funding the sequel," he said. "I have an idea ready to go. People think doing a sequel is easy, but it's not because you need the element of surprise. I'm going to try to do something that's quite radical."

Stallone wouldn't elaborate what that "radical" idea might be, but it seems this sequel could happen, with box office tracking suggesting the film will open over $30 million this weekend. Stallone also revealed that on-set injuries - including a broken neck - bode well for the success of the film.

"It's a good omen," he explained. "I didn't get a hangnail on the set of Stop! Or My Mom Will Shoot."