Marvel Studios began filming Iron Man 2 yesterday and we’ve received a few photos of Robert Downey Jr. and Gwyneth Paltrow on the set, while SpoilerTV has even more, including photos of Don Cheadle.
Opening in theaters on May 7, 2010, the Jon Favreau-directed sequel also stars Mickey Rourke, Sam Rockwell, Samuel L. Jackson, Scarlett Johansson, Garry Shandling and John Slattery.
Source: Superhero Hype!