Guardians of the Galaxy has surpassed Iron Man to become the third highest-grossing Marvel Studios film at the domestic box office.

The sci-fi action comedy has grossed $319 million in its ninth week of release. Only Marvel Studios’s The Avengers and Iron Man 3 have higher domestic box office totals than Guardians of the Galaxy at $623 million and $409 million respectively.Guardians of the Galaxy's has a worldwide cume of $644.3 million. The film is poised to overtake Marvel’s fourth highest-grossing movie worldwide, Thor: The Dark World, which has grossed $644.8 million worldwide.Last week, 2014’s biggest domestic hit surpassed Iron Man 2’s domestic box office totals. It is unlikely that Guardians will catch Iron Man 3’s domestic gross of $409 million.Marvel was so confident in Guardians of the Galaxy that it announced a sequel coming on July 28, 2017 at San Diego Comic Con days before the first film’s release.

Michael Martin is a freelance writer from Seattle who is one of the last people on Earth who hasn't seen Guardians of the Galaxy. Follow him on Twitter