Most big-budget blockbuster movies these days go through a pre-viz animatic phase, to map out certain sequences before shooting actually begins. Iron Man 3 and Marvel's The Avengers are no exceptions, although not all of the scenes end up making it into the final movie. Storyboard artist and animatic supervisor Federico D'Alessandro posted two unused animatics from Marvel's The Avengers, featuring an early version of the climactic New York City battle scene that features The Wasp, and a discarded confrontation between Loki and Iron Man. The artist also posted a pre-viz sequence during the Iron Man 3 finale where Tony Stark (Robert Downey Jr.) and James Rhodes (Don Cheadle) are cornered by a number of soldiers, and The Mandarin (Ben Kingsley) "checks out" in an interesting fashion.
Iron Man 3 was released May 3rd, 2013 and stars Robert Downey Jr., Gwyneth Paltrow, Don Cheadle, Guy Pearce, Rebecca Hall, Jon Favreau, Ben Kingsley, James Badge Dale. The film is directed by Shane Black.
Marvel's The Avengers was released May 4th, 2012 and stars Robert Downey Jr., Chris Evans, Mark Ruffalo, Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Tom Hiddleston, Clark Gregg. The film is directed by Joss Whedon.