Tony Stark himself (aka Robert Downey Jr) rang the opening bell at the New York Stock Exchange this morning in celebration of Iron Man 3‘s May 3rd release. Several Marvel execs, as well as NYSE’s Scott Cutler also were on board. Whatever happens with the movie, Disney’s a hit on Wall Street: Its shares reached yet another all-time high yesterday after UBS Investment Research’s John Janedis upgraded his recommendation to “buy” from “neutral,” raising his target price to $72 from $55. Disney closed today at $62.84, down 0.3%. After ringing the bell, Downey talked with CNBC’s Bob Pisani about the film’s success so far: