'Mad Men' cast glams up Hollywood for big screen Season 5 premiere

mad-men-s5-premiere-1.jpg "Mad Men" is back. Or will be on March 25. But Wednesday, the show's stars glammed up Hollywood's Cinerama movie theater for a big screen premiere of the Season 5 opener.

Jon Hamm arrived with longtime girlfriend (and "Friends with Kids" director/co-star Jennifer Westfeldt) on his arm. His on-screen ex, January Jones, accented her new pink-streaked hair with a retro body-hugging black knee-skimming dress. We like the neckline, but aren't sure what's going on at the midriff or the hemline.

mad-men-premiere-january-jones-gi.jpgBoth Elisabeth Moss and Christina Hendricks are out of the country filming other projects and weren't on hand for the event. But plenty of their co-stars were -- including Jessica Pare, Alison Brie and John Slattery were.

Jessica Pare:

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Brie and Slattery:

mad-men-alison-brie-john-slattery.jpg Kiernan Shipka:

mad-men-premiere-kiernan-shipka-gi.jpg Rich Sommer and Vincent Kartheiser:

mad-men-premiere-rich-sommer-vincent-gi.jpg Jared Harris and girlfriend Allegra Riggio:

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Photo/Video credit: Getty Images