Aged very well

Downey plays off his own bad-boy image wonderfully. The writers give him great lines to work with and ditto that for his Girl Friday, Gwyneth Paltrow's Pepper Potts, whose own svelte lines cannot be improved on.

Kirk Honeycutt

The Hollywood Reporter

Ever-eclectic director Jon Favreau, who briefly pops up onscreen as a Stark minion, maintains a brisk but not frantic pace, and, in concert with lenser Matthew Libatique, production designer J. Michael Riva and the first-rate visual effects team, has made an unusually elegant looking film for the genre.

Todd McCarthy

Variety

Loyal assistant, Pepper Potts, isn't much of a part, but Gwyneth Paltrow is a presence. She stands around looking amused and flabbergastingly pretty, slinging wisecracks with serene aplomb.

David Edelstein

New York Magazine (Vulture)