Sin City is the title of a number of stories by Frank Miller, written in a comic book-style and the name of a movie that is based on the books.
A movie version of the Sin City books was released in 2005. It starred a number of famous actors, including Jessica Alba, Brittany Murphy, Bruce Willis, and Elijah Wood. The movie was directed by Frank Miller, Robert Rodriguez, and Quentin Tarantino.
The movie is based on four stories from the Sin City books: "The Customer is Always Right", "The Hard Goodbye", "The Big Fat Kill" and "That Yellow Bastard".