Sylvester Stallone and Robert Downey Jr. Pictures: Iron Man 2 World Premiere Red Carpet Photos and Pics

Sylvester Stallone and Robert Downey Jr. pose on the red carpet at the worldwide premiere of "Iron Man 2" held at the El Capitan Theatre on April 26, 2010 in Hollywood, California.

The world is aware that billionaire inventor Tony Stark is the armored Super Hero Iron Man. Under pressure from the government, the press and the public to share his technology with the military, Tony is unwilling to divulge the secrets behind the Iron Man armor because he fears the information will slip into the wrong hands. With Pepper Potts, and James "Rhodey" Rhodes at his side, Tony forges new alliances and confronts powerful new forces.

"Iron Man 2" opens in theaters nationwide on May 7.

Picture copyright: Michael Buckner / WireImage