Hot on the heels of yesterday's announcement that Joseph Gordon-Levitt joined the cast of Frank Miller and Robert Rodriguez's 'Sin City 2' comes breaking news that Josh Brolin has signed on too and will star as the film's lead.

What is this, a mad dash to join 'Sin City: A Dame to Kill For' before they run out of green screen? Yesterday we reported that Joseph Gordon-Levitt passed on offers for leads in 'Godzilla' and 'Guardians of the Galaxy,' instead choosing another geek property -- 'Sin City 2.'

Today we learn that Josh Brolin has also joined the cast (as well as 'Law & Order: SVU's Chris Meloni), replacing Clive Owen as Dwight and reuniting Brolin with Rodriguez, for whom he starred in the 'Grindhouse' segment 'Planet Terror.'

The film, whose official title is 'Sin City: A Dame to Kill For,' follows Dwight in a story that takes place before the first film, as he's tracked down by Ava Lord, the only woman he ever loved, and then things get violently out of hand, as they do in 'Sin City.' And if you're wondering how Josh Brolin can replace Clive Owen, don't worry -- apparently the sequel will explain why Dwight's face is so different in the first movie.

Says Rodriguez in a quote:

Dwight is a constant character throughout the Sin City world and 'A Dame To Kill For' is a defining episode in his life.  We're looking forward to Josh's take on Dwight.

'Sin City 2' will tell three stories, including an all-new tale written specifically for the film by Frank Miller. The film is currently shooting in Austin, Texas, and will hit theaters on October 4.

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