In the upcoming super-stylistic sequel "Sin City: A Dame To Kill For, Penny Dreadful" star Eva Green plays the eponymous dame, who spends at least a decent portion of the film wearing very little, and the very little she does wear appears to be see-through.

Josh Brolin stars opposite Eva as Dwight – the character originally played by Clive Owen in the first "Sin City" – and Dwight is the one doing a lot of the killing mentioned in the film's title.

ET sat down with the two stars to talk about what makes Eva the perfect dame to kill for.

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"She has these eyes," explained Brolin. "There's something about her eyes. Robert [Rodriguez] said he started with a wide shot and he realized it wasn't working… you don't usually go in for a close-up first and foremost, and he did… She has incredible seductive power."

And it's the character's skills in the art of seduction that makes her so terrifyingly dangerous. It's also those skills that lead Dwight back into her bed even after being spurned by her in the past, leading to some very steamy scenes.

"Her, coming from Europe and all that, that's not an issue," Brolin said, explaining how comfortable Green was in showing her body on film. "It's a much bigger issue for us. We like violence and [not] sex, which I don't quite understand. But this movie has both in very extreme, absurd ways."

After answering with a coy smile, Rocsi asked Brolin if he was, in fact, flustered by thinking of the film's sex scenes.

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"I am!" Brolin laughed.

However, Green explained that the scenes were not that hot and heavy when it came time to shoot them.

"You know, he's wearing flesh colored Spanx and I'm wearing a tiny thong, and we feel not really sexy, actually, and quite silly," Green admitted laughing.

'Sin City: A Dame To Kill For'  hits theaters August 22.