Yesterday at the Gravity premiere that opened the first night of the 70th Venice International Film Festival, the lead actress stepped out in a stunning strapless architectural gown by J. Mendel that matched the rich color of the red carpet. She wore the intricately folded dress with ease. And, to prevent herself from completely morphing into the red carpet, added all-black accessories by Roger Vivier. Bullock slipped on black sandals with a thick ankle strap, carried a slender tube clutch, and gave her eyes a barely there smokey eye. She tossed her dark locks into a updo with a pouf — and just let the dress do the talking that night.