Also at the premiere were Benedict Cumberbatch, Tilda Swinton and Robert Downey Jr.

By Karen Mizoguchi
Updated October 21, 2016 10:04 AM

No black magic necessary for Rachel McAdams when it comes to effortlessly chic style. The actress looked gorgeous on the red carpet at her Marvel movie Doctor Strange in Los Angeles on Thursday.

Credit: Kevin Winter/Getty Images

McAdams, 37, donned a strapless silver gown from Atelier Versace’s Fall 2016 collection. The sculptural bodice wrapped and folded around the star for a silhouette that exposed an orchid lining, in addition to a sexy slit. She completed her look with a pair of nude suede platform heels, H. Stern jewels and a bold red lip.

Credit: Kevin Winter/Getty Images

Another leading lady who dazzled at the event was Tilda Swinton. The Oscar winner, who’s known for rocking androgynous ensembles, looked out of this world in a green gold velvet Haider Ackermann gown that was cinched at the waist with the designer’s silver metal belt.

Credit: Kevin Winter/Getty Images

Benedict Cumberbatch forgoed his titular character’s signature cloak for a velvet blue suit and black dress pants. Accompanying the actor was his wife Sophie Turner.

Credit: Frazer Harrison/Getty Images

Marvel members Robert Downey Jr. (in Givenchy summer 2017), Chadwick Boseman and Stan Lee were also at the event, which was live-streamed on Twitter and Facebook.

Doctor Strange hits theaters Nov. 4.