According to Disney, combined with international sales, the film brought its total earnings to 680.1million dollars, a newspaper reported.
The movie stars Robert Downey Jr. as the billionaire businessman Tony Stark, whose superhero alter-ego spars with an evil extremist.
‘Avengers’ holds the opening record with 207.4 million dollars over its first three days.
Previous two instalments of ‘Iron Man’ earned a total of 1.2 billion dollars across the world, the a box office website reported.
Last week’s winner, dark action comedy ‘Pain and Gain,’ dropped to second place with 7.6 million dollars whereas baseball drama ‘42’ took number three place with 6.2 million dollars.
Rounding out the top five was Tom Cruise’s post-apocalyptic thriller ‘Oblivion’ that has earned 5.79 million dollars, and the animated film ‘The Croods’ grossed 4.2 million dollars.