W Magazine 40th Anniversary Covers

Scarlett Johansson, Keira Knightley, Mia Wasikowska, and Rooney Mara all have the honor of fronting a different cover for W magazine's 40th anniversary edition. Scarlett's repping the '90s, Mia went '80s, Rooney had '70s style, and Keira was modern with a 2000s vibe — see more photos of the actresses in the W anniversary edition. Keira, Scarlett, Rooney, and Mia also did interviews with the publication to chat about style and famous ladies from their assigned decades. Here are highlights from Keira, Rooney, Mia, and Scarlett in W:

• Keira on what she's hated style-wise in the last decade: "I think skinny jeans and micro-miniskirts are very unfriendly. I've been known to wear both, but on some days it seems like they were invented to make you feel bad about yourself."
• Rooney on an interesting '70s celebrity: "Style-wise, the person I'm most drawn to is Ali MacGraw. There was something about her that was very regal but very natural at the same time. We kind of modeled my character in The Social Network after her: I had a crocheted beret that was inspired by the one she wore in Love Story."
• Scarlett on an unfortunate '90s trend: "Turtlenecks — they're horrible. I tried to get into them because they are so practical, but they're just so unfortunate. Men don't like turtlenecks. I've never met a man who likes anything around his neck other than my hands."