Mad Men's creator and executive producer Matt Weiner and AMC are thiiiiis close to sealing the terms of season 5. But wait:. Deadline says:

Can't think of any cast members I'd be willing to sacrifice, but you could reduce the time of one. You could cut one minute without ruining the integrity of the show, especially for people who buy it on iTunes because their cable provider doesn't have AMC HD. Or you could just go nuts with product placement and skip negotiations about the other two, because product placement is part of the show's appeal. Lucky Strikes would probably pay millions alone.