'Oz' Gals Talk Corsets, Cargo Pants & Jason Segel

InStyle magazine got some serious girl talk out of the A-list ladies of Oz The Great and Powerful. From Michelle Williams gushing over her boyfriend Jason Segel to Mila Kunis giving a leather corset confession, these interviews play out like a wine night with the gal pals.

Williams, 32, claims she had no idea who her beau Segel, 33, was when they first met, telling the magazine, "I mean, I saw the Muppets movie, and I thought, oh, that's cute, but the truth is I didn't realize he made a lot of very popular, funny movies or was on a TV show. But maybe more important, I didn't realize he was so tall [6’'4"]. I thought, 'Hey, man, you're cramping my style!' I tried wearing wedge heels for a while to compensate, but it wasn't me and I just gave up."

She added that lately she's been quite content, telling InStyle, "The other day I was out there all bundled up and the sun was shining and I realized I was smiling in a way I hadn't in a long time. The roses in my cheeks weren't from makeup for once. It was a perfect moment. If people are happy about it that makes me feel good because in my head the opposite is often true - that people fault or blame you for things. That's really painful. You wish they would just want you to be happy, for your kid to be happy, and for you to have a good life and do good work. Any kind sentiment that the world can feed back, well, I won't turn it down."

While Williams was willing to cough up some tidbits about her relationship, Kunis, 29, was more inclined to talk fashion. "I spent a lot of the shoot in a leather corset, wired up in a harness, and flying around in a costume that weighed 10 pounds," she said of her Oz costume. "I hear some women enjoy wearing a corset, but tell them to try 17 hours of that and then get back to me."

RELATED PICS: Oz The Great and Powerful Posters

As for her more embarrassing wardrobe choice, the actress admits, "I've been wearing the same pair of dark green Old Navy cargo pants, like, non-stop, for 15 years. I think I paid $4.99, on clearance. My friends hate them so much they hide them from me. When those pants fall apart, I swear I'm going to get someone to copy them for me."

Weisz, 42, chimed in about her fashion evolution as well, saying, "As a teenager I used to dress in big, baggy men's suits, with lots of red lipstick. Then in my 20s I used to wear very tight thermal tops: underwear as outerwear. I was much curvier then too--I'd throw on a cardigan and big jeans. I didn't start really growing up until my 30s. But I hope I don't ever get too grown-up. I always try to hold on to something butch."

The March issue of InStyle hits newsstands this Friday, February 8, while Oz, also starring James Franco, comes to theaters March 8, 2013.