AMC's affinity for black and white photography is on display once more with an immense gallery to promote the return of Mad Men, which airs its Season 6 Premiere Sunday, April 7 at 9 PM ET. If you watch the channel regularly, you'll know that they are currently re-airing early episodes of The Walking Dead in black and white. This new Mad Men gallery also features shots from the big gala event that was showcased in yesterday's color photo gallery. Since this season's tagline is "An affair to remember," it makes one wonder what exactly these advertising executives are celebrating. Since both Don's (Jon Hamm) ex-wife Betty (January Jones) and her new husband Henry (Christopher Stanley) are there, it must be a big event. Take a look at the latest photos featuring Elisabeth Moss, Christina Hendricks, Jon Hamm, Vincent Kartheiser, Jessica Paré, John Slattery, Robert Morse, Aaron Staton, Rich Sommer, January Jones, Kiernan Shipka, Alison Brie, and many more.