Adding more flesh and blood to the new movie, Scarlett Johansson joined the cast as Stark's mysterious new assistant, Natasha, who has an alter ego of her own, Black Widow. That introduction inevitably sparks romantic tension between Stark and former assistant Pepper Potts (Gwyneth Paltrow), who's been promoted to CEO of Stark Industries. "The men want it to be, like, 'Ooh, the girls are fighting over Tony,' but it's not as standard as that," says Paltrow. "There's a weird male catfight fantasy. Downey agrees. He believes what differentiates the franchise from other superhero series can be summarized as follows: "We're horny. Not, like, can't-bring-your-kids horny, but just...horny."

The question remains whether Iron Man 2 will soar like the first film or show signs of rust when it hits theaters. "People are going to be more critical," says Downey. "That's their prerogative....In a way, there's no way to win, except to win. Big."

I am going back to my day job this spring (filming a movie) and I am confronted with a few wardrobe issues. First of all, I never know what to wear in Los Angeles (are those pajamas??) and inexplicably, I am always freezing here. Having had a good look through the spring collections, I don’t think it's necessary to make any sweeping changes. They are still selling gladiators that are almost identical to the ones I got last spring and there hasn’t been any major shift in silhouettes. I am going to stick with the classics and update a few simple pieces that are easy to wear. In keeping with the idea (as my mom says) of shopping in your closet, I recently did a good look-through and found some things that I will now call "vintage" as well as doing a big cathartic spring cleanout. I thought maybe I would eBay some of my favorite and most treasured things to raise some money for the Robin Hood Foundation, who do a lot of amazing work in New York City. So check it out if you are interested.

Gwyneth's not alone in lending her design talents to the cause. Eight other stars, including Brooke Shields, Debra Messing, Marcia Cross, Angie Harmon, Bridget Moynahan, Catherine Bell, Elisabeth Hasselbeck and Garcelle Beauvais-Nilson, have also signed on to create limited-edition mommy-and-me looks — for both daughters and sons — in iconic Lilly Pulitzer prints.

The collection, which will consist of seven easy-dressing silhouettes ranging from casual basics to draped evening dresses, will capture the star's laid-back daytime style, as well as her always-elegant red carpet looks. Taking inspiration from '70s glam and rock 'n' roll, the line will play with form, pairing over-sized shapes with tight-fitting styles and asymmetrical cuts. And style icon Gwyneth made sure she was involved in every stage of the development process, from fit to detailing to fabrics and packaging. Expect to see mesh detailed tops, draped evening dresses, vintage look sweatshirts, jumpsuits and recycled cotton legging basics.