The film will become only the eighth in history to reach the $1 billion mark.

Joining an elite group of movies, Disney’s Pirates of the Caribbean: On Stranger Tides will jump the $1 billion mark at the worldwide box office sometime this weekend.

PHOTOS: Pirates Disneyland premiere

Through Wednesday, the pic’s global cume was $992.9 million.

Only seven films in history have crossed the $1 billion milestone; On Stranger Tides will become No. 8.

PHOTOS: THR's summer blockbuster guide

Pirates of the Caribbean: Dead Man’s Chest also is a member of the billion club, having earned $1.1 billion worldwide.

PHOTOS: Behind the scenes of Pirates of the Caribbean

On Stranger Tides has done massive business at the international box office, where it’s grossed $761.9 million to date. Domestically, it’s cumed $231 million.

PHOTOS: Highest-grossing films of all time

The success of the fourth Pirates is a big victory for Disney and producer Jerry Bruckheimer, as well as director Rob Marshall.

Email: Pamela.McClintock@thr.com