http://www.VF.com Her Saturday Night Live Sarah Palin impression made Tina Fey a household name, snared her a $5 million book deal, and juiced the ratings for her funny, clever sitcom, 30 Rock. Go behind the scenes of Tina Feys photo session with Vanity Fair s Annie Leibovitz for the January issue of Vanity Fair. Related: What Tina Wants, by Maureen Dowd: http://www.vanityfair.com/magazine/20...