'Xerxes' Film Reunites '300' Writing Team

XerxesFrank Miller's "Xerxes" miniseries won't be out for a while from Dark Horse, but Zack Snyder has already begun work on the film's screenplay, and his co-writer from "300" Kurt Johnstad has returned for the project, which Snyder says is neither a sequel nor a prequel.

"We closed the writing deal on 'Xerxes.' We started writing about a week ago," Snyder told the Los Angeles Times. "So we're doing it. It's happening."

Snyder hasn't been locked in to direct yet, but he expressed hope that Warner Bros. would bring him back.

"It's really going to depend on what the studio wants to do and what we do when we finish; I don't have a directing deal in place but we are writing it, so call it intent," he explained.

As for the story, Snyder offered a few details, outlining where and when the events in "Xerxes" will occur in relation to "300."

"This movie follows Themistocles and the Battle of Artemisium, which coincidentally happens on the exact same three days as the Battle of Thermopylae [which was the basis of '300']," Snyder said. "This one starts off with a quick retelling of the why of the Persian wars. It starts off at the Battle of Marathon and then it goes back to Themistocles finding out that Persians are invading again. and off we go over to learn a little bit about why Xerxes is the way he is."

It even sounds like Snyder is leaving the door open for a Gerard Butler cameo, which could be difficult. Nevertheless, if he's writing the screenplay, he'll have the ability to work it in.

What are your expectations like for "Xerxes"? Do you think Gerard Butler should have a cameo? Let us know in the comment section or on Twitter!