PICTURES: Jessica Biel Flashes Sideboob in Backless Dress at Hitchcock L.A. Premiere

Actress Jessica Biel arrives at the Los Angeles premiere of "Hitchcock" at the Academy of Motion Picture Arts and Sciences on November 20, 2012 in Beverly Hills, California. Credit: Gregg DeGuire/

Just call her Mrs. SexyBack -- but the side and front aren't too bad, either.

Jessica Biel graced the red carpet again -- her second since marrying and honeymooning with Justin Timberlake last month -- for the Tuesday Nov. 20 L.A. premiere of Hitchcock. Clad in a daring, backless gown by Gucci, the Total Recall actress, 30, showed off a considerable amount of "sideboob" -- i.e. cleavage as seen from the side -- as she posed for photographers, with her hair swept up dramatically.

The dramatic gown also showed off the Seventh Heaven alum's flawless, slim back. She changed into a white minidress for the film's afterparty.

It's a major switch-up from Biel's look just two days earlier at the NYC premiere of the film, in which she wore a sheer, silver bead and lamé mousseline embroidered tunic and pant by Oscar de la Renta. The stunning star drew mixed reactions for that chosen ensemble: Out of nearly 12,000 votes, 51 percent of Us Weekly readers online hated the Golden Girls-esque look, with 49 percent approving of the de la Renta outfit.

In Hitchcock, the newlywed actress stars as real-life actress Vera Miles alongside Anthony Hopkins, Helen Mirren and Scarlett Johansson in a look at the making of director Alfred Hitchcock's 1961 horror masterpiece Psycho.

There's one A-lister Biel is still dying to work with: Her husband!

"I absolutely adore him. I actually would prefer him to direct me in something," she said of Timberlake, 31. "I think that would be the way to go."