http://popwatch.ew.com/2010/07/24/comic-con-mark-ruffalo-jeremy-renner-cast-in-joss-whedons-superhero-extravaganza-the-avengers/
So, we've got Robert Downey Jr. back as Tony Stark/Iron Man, Mark Ruffalo will be playing Bruce Banner/The Hulk (the third actor in as many feature films), and Jeremy...