Frank Miller, the writer/director of Sin City just announced at the San Diego Comic-Con that he has completed the script for the sequel Sin City 2.

Although his screenplay is finished, he said there is no word on when filming will begin.

In Sin City 2, Frank Miller and Robert Rodriguez continue to adapt Miller's "Sin City" graphic novels, this time with the second book "A Dame to Kill For," an earlier story of Dwight McCarthy (Clive Owen's character), whose life is turned upside down when Ava, a woman from his past returns, saying she loves him and causing all sorts of problems for him.

Sin City 2 is in development .