"Real Spartans were pretty hard core," he said. "It's like the way Spartans raise their children. They do crazy stuff -- they beat on them, they make them fight. If they're not perfect, then they chuck them off cliffs. They're pretty hard core."
Snyder's previous film was a remake of the George Romero horror classic, "Dawn of the Dead." Snyder does not want to be seen as competing with his heroes.
"'Dawn of the Dead' is a love letter to George Romero, there's no two ways about it. I mean, that's my version of the movie. And Frank's book, I tried to make it as faithful as I could to the graphic novel, so it's not like I'm trying to take those guys on and say, 'You're wrong! I can fix your thing. I can make it better!'" he said.
Despite all the hype about "300," Snyder takes it in stride.
When asked whether he and his filmmaking style were the future of movies, Snyder replied, "If the future of the movies is having a good time, then maybe."
"300" opens in theaters Friday.