Rachel McAdams chose a strapless dress designed by Vivienne Westwood for the premiere of their film The Vow in Los Angeles last Monday, Feb. 6. Rachel looked every inch the leading lady as she stepped out at the premiere alongside co-star, Channing Tatum. She perfected Hollywood glam with red lippy and smoky eye make-up. And despite being a brunette in the new flick, the actress was showing off her gorgeous blonde locks. To add the final touch, the actress wore jewelry by Pomellato and shoes by Christian Louboutin.