"I didn't bother getting into it with Tarantino about the Superman thing, because it's not really true," chuckles Carradine. "It's not unique. The idea that Superman's analysis, whatever you want to call it, his image of the human race is Clark Kent, weak, a coward, fumbling, wearing glasses, uncertain of himself, not able to get a girl, all those kinds of things. That's his idea about us and that's the point that Tarantino was trying to make. But the idea of Superman being unique in that he was born Superman, which is another point that Tarantino's trying to make, that that's what these people [Bill, etc.] are, these people are born warriors and they can't help it, but there's also the Silver Surfer, right? And there's Sub-Mariner..."