Gwyneth Paltrow may not personally be celebrating an anniversary, but her Avengers character Pepper Potts is. The actress posted a shot of she and, co-star Robert Downey Jr., posing on the set of the fourth installment of Avengers. Her picture included the caption "10 years of #pepperony," accompanied with pizza and heart emojis. "Pepperony" is a mash up of she and Downey's characters, Pepper and Tony Stark, Iron Man. Comicbook.com adds that her picture may also give way to a spoiler, revealing that she's "wearing a motion capture suit" meaning that there may be a "stint in some Iron Man or Rescue armor during the film."