The debut dates for the new seasons of the HBO series Boardwalk Empire and Treme have been confirmed.

The 12-episode Season 3 of Boardwalk Empire kicks off Sunday, Sept. 16 at 9:00 p.m. (ET/PT). Set in the 1920s in the early days of Prohibition, this Golden Globe-winning series chronicles the life and times of "Nucky" Thompson, the undisputed leader of Atlantic City. Steve Buscemi stars as Thompson; other cast members include Kelly Macdonald, Michael Shannon, Shea Whigham, Jack Huston, Stephen Graham, Michael Stuhlbarg, Vincent Piazza, Paul Sparks, Michael K. Williams, Gretchen Mol and Bobby Cannavale. The series was created by Terence Winter, who also serves as executive producer with Martin Scorsese, Stephen Levinson, Mark Wahlberg and Timothy Van Patten.

Treme launches its ten-episode Season 3 Sunday, Sept. 23 at 10:00 p.m. (ET/PT). From David Simon, creator of The Wire and Generation Kill, and Eric Overmyer, writer-producer of Homicide: Life on the Street, this HBO series explores a unique American culture rebuilding after historic devastation, chronicling the life of New Orleans residents in the aftermath of Hurricane Katrina. Cast members include Wendell Pierce, Khandi Alexander, Clarke Peters, Rob Brown, Steve Zahn, Kim Dickens, Melissa Leo, Michiel Huisman, Lucia Micarelli, Jon Seda, David Morse and India Ennenga.

Cinemark Movie Club