Jennifer Aniston has the quintessential all-American style. Last night for the 26th American Cinematheque Awards, she selected a black and white Valentino column gown with a classic, ultraelegant feel. The strapless silhouette is a favorite go-to style of Jen's, and we love how the dress played right off of fiancé Justin Theroux's tuxedo. Keep watching today's Fab Flash for all the details. On Allison McNamara: Millau top, H&M sweater. Hair and makeup by Kasia Bohos.