Robert Downey Jr.

Robert Downey Jr. will strap on his metal suit to join the superhero team effort "The Avengers" in addition to "Iron Man 2," Marvel Studios announced Tuesday.

Downey is reprising his role as billionaire genius Tony Stark from last summer's blockbuster "Iron Man," with the sequel due out May 7, 2010, and "The Avengers," scheduled for July 15, 2011.

The movies are part of a four-picture deal between Downey and Marvel.

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