Marvel Studios is keeping the publicity machine rolling for Marvel's The Avengers, which will take 2D and 3D theaters by storm May 4. Today we have three new photos from this superhero adventure, which feature Robert Downey Jr.'s Iron Man, Scarlett Johansson's Black Widow, and Cobie Smulders' Maria Hill. Click on the photos to access our growing gallery for this superhero ensemble.

Black Widow Photo
Maria Hill Photo
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Iron Man Photo