"Pepper definitely sort of comes into herself a little bit more. In her first scene, you see her really in action as CEO and I think she's really impressive," Paltrow said. "She really gets sassy in this one."
The third installment of the "Iron Man" series is filled with action and mind-blowing, state-of-the-art special effects.
Paltrow has been part of the "Iron Man" team since the beginning, as Tony Stark's fiery female counterpart. The actress says she had a hard time following the script sometimes, saying she understood the complex plot when she watched the completed movie.
"When I watched it, I completely understood and I thought it was brilliant and made perfect sense," Paltrow said.
Not counting "Iron Man," Paltrow has been spending much of her time recently in ventures outside of Hollywood. Along with managing her website Goop.com, she's also the author of a new cookbook titled, "It's All Good."
Can her fans expect her to continue trying new projects?
"No, that's it. I got my books and my website. I'm good, I'm good. I'm so busy," she said, though she did not squash the possibility of directing a Broadway play in the future.
Paltrow is going back to her more independent movie roots for her next project. She's starring in a Spanish film about Pablo Picasso called "33 Dias" opposite Antonio Banderas.