It's one of those moments in the Rambo trailer that had people shaking their heads. Rambo comes up behind one of the bad guys and appears to punch off his head with a clean swipe. "I know, that's an optical confusion," Stallone tells ComingSoon.net. "What it was, was the knife and it was such a bad print, it looked like I punched his head off. No, that's the shot, absolutely. I kept reading blogs and said, "Guys, look closely. No one can punch someone's head off."" It's a lengthy and pretty interesting interview, where Stallone delves deeper into his thoughts behind the new movie, why he chose Birma, and how he thinks you keep people like Rambo and Rocky revelant to todays audience.