After fashion biographies as insightful and entertaining as 2008's "The September Issue" and last year's "Diana Vreeland: The Eye Has to Travel," the genre crashes to Earth with "Mademoiselle C," a shockingly inept vanity project for the former Vogue Paris editor Carine Roitfeld (hardly a mademoiselle), who in 2011 left Conde Nast to start (with Stephen Gan of Visionaire) her own magazine, CR Fashion Book.
