'The Avengers' expected to top $1 billion worldwide May 13, 2012 -- Updated 2218 GMT (0618 HKT) "The Avengers" earns an estimated $103.2 million its second weekend, Disney says It had the highest domestic box office debut of all time Disney is already planning a sequel to the superhero smorgasbord (CNN) -- Superheroes are proving their powers at the box office. "The Avengers," a superhero smorgasbord featuring Captain America, Iron Man, Thor and The Hulk, is expected to top $1 billion worldwide on Sunday, its 19th day of release, said Walt Disney Studios. The film, which had the highest domestic box office debut, brought in an estimated $103.2 million in domestic theaters its second weekend, setting another industry record, according to Disney. It raked in $207.4 million opening weekend. "We're obviously thrilled with the global success of 'The Avengers,'" Robert A. Iger, Disney's chairman and chief executive, said in a statement. It's a fantastic movie and an extraordinary franchise that will continue with more great stories and compelling characters for years to come. To date, "The Avengers" has earned some $628.9 million internationally, said Disney. The company is planning a sequel to the smash film.