Director Zack Snyder confirmed that he's interested in directing a sequel to his hit 300 and said that creator Frank Miller's idea for the follow-up won't pick up necessarily from the first film's ending.

"He's crazier than that," Snyder said in a group interview Saturday at Comic-Con in San Diego. "You know that's not how it'll be. I've seen a little teeny bit of it, and it's, I'm like, 'OK. Wow.' It kind of, yeah. It's cool. It's smart. He did a smart thing."

Snyder was careful to say the sequel will wait on Miller's completion of a follow-up graphic novel to the original 300 and won't be conceived as a movie from the start.

"For me, the thing that I'm trying to do is duplicate in some ways the process of making 300 originally," Snyder said. "In the sense that I really don't want Frank to write the graphic novel thinking ... like it's going to be a movie. You know? I want to just make a piece of art the way he does, without any [preconceptions]. And I told him this. I said, 'Listen,' you know? Because there was this whole thing about, 'Oh, you know, are you interested in, like, talking ... to Frank about what I thought should be in the ... graphic novel?' And I was like, no. That doesn't make any sense at all. That's, like, backwards. I go, "He should write a graphic novel, and then I'll write a movie, and then we'll make a movie.' ... Let's not, like, put the cart before the horse, like they say. So yes. So right now, he's writing the graphic novel, and we're waiting to see what he does."

Snyder was at Comic-Con to promote the upcoming director's-cut Blu-ray and DVD of his Watchmen movie, which is now in stores, featuring an additional 25 minutes of footage.

Snyder also updated us briefly on the status of his fantasy-tinged action movie Sucker Punch. "We're not shooting yet," he said. "We start shooting September 10th. So I'm up in Vancouver. We just flew down yesterday. So we're prepping in Vancouver, and the girls are training, and it's, you know, it's worth a lot, every day, all day long."

Sucker Punch is the story of a girl committed to a mental institution in the 1950s who uses the alternate reality of an imaginary world to plan her escape. Emily Browning, Jena Malone, Jamie Chung, Vanessa Hudgens and Abbie Cornish star as the inmates with butt-kicking alter egos.

Snyder laughed when asked again about rumors that squeaky-clean High School Musical star Hudgens is going to be naked in it.

"Not naked," Snyder said. "I love that. I saw that on the Internet and I was like, really? That's news to me. No. But she is going to kick some butt in that movie, I will tell you that. Not naked butt, just normal."

Sucker Punch is due in theaters March 25, 2011.