The "Sin City" sequel has had a title change and will now go by the official name of "Frank Miller's Sin City: A Dame to Kill For".
Miller co-directed the film with Robert Rodriguez, co-write the screenplay, and created the comics on which the franchise is based. Talking with Collider, Robert Rodriguez says the second film is essentially finished and Miller is already looking forward to a third film:
"Yeah - the second Sin City– I was just here with Frank Miller last night and we were watching it last night. [We] finished the cut, effects are being done, it will come out in August.
He [Miller] watched Part 2 - he watched it last night with me and then at the end he said, he didn't have any comments, he was very happy with it. And he said, now about part three. Started telling me how he's going to do part three. So he's already there on part three."