The Marvel Comics adaptation, starring Robert Downey Jr. as the guy in the metal suit, hauled in $100.7 million during its opening weekend and $104.2 million since debuting Thursday night, the second-best premiere ever for a nonsequel, according to studio estimates Sunday.

The film also scored overseas with $96.7 million in 57 countries where it began opening Wednesday, putting its worldwide total at $201 million.

The movie, distributed by Paramount, is the first release by Marvel Studios, which has begun financing its own productions after such studio-backed hits as the "Spider-Man," "X-Men" and "Fantastic Four" flicks.

"We could not have hoped for a better way for Marvel Studios to blast off," said David Maisel, chairman of the unit, a division of Marvel Entertainment, which stands to pull in a greater share of box office receipts and merchandising money by financing movies itself.

Debuting in second place with $15.5 million was Sony's romantic comedy "Made of Honor," starring "Grey's Anatomy" heartthrob Patrick Dempsey as a man who tries to woo his best pal after she asks him to be "maid of honor" at her wedding.