Sex, drugs, jazz, liquor... it's time to watch Chicago and know every line. 

Also I don't think we ever clearly explained the plot (sorry!) so here's the wiki summary: Chicago centers on Roxie Hart (Zellweger) and Velma Kelly (Zeta-Jones) two murderesses who find themselves in jail together awaiting trial in 1920s Chicago. Roxie, a housewife, and Velma, a vaudevillian, fight for the fame that will keep them from the gallows.