'Iron Man 2' in the works

LOS ANGELES -- This weekend was just the beginning of Hollywood's Iron age.

Marvel Studios announced Monday it will release "Iron Man 2" on April 30, 2010, following the success of the first in the comic-book franchise, which pulled in $104.2 million domestically since opening last Thursday and $201 million worldwide.

Four other films based on Marvel superheroes also were announced: "Thor," due out June 4, 2010; "The First Avenger: Captain America," May 6, 2011; "The Avengers," July 2011; and "Ant-Man," which is in development but has no release date.

Marvel also has "The Incredible Hulk," starring Edward Norton, coming out this June 13 from Universal Studios.

Just as Downey's character, Tony Stark, makes an appearance in next month's "The Incredible Hulk," the Hulk could turn up in "Iron Man 2," Marvel Studios Chairman David Maisel said during a conference call to discuss the company's earnings.