If the film earns more than $1.15 billion ($US500 million) it will leap into the top 20 earners of all time, ahead of blockbusters including Saving Private Ryan, Jaws, The Matrix and Gladiator.
However, it's a long way from reaching the giddy heights of Titanic, which pulled in more than $4 billion worldwide.
The Lord of the Rings has taken $482.3 million in the US and $548.8 million in the rest of the world.
Takings in New Zealand are estimated at more than $7 million.
The success of the film will be helping to fill Jackson's pockets. The 40-year-old director is said to be guaranteed about 5 per cent of the profits.
- NZPA
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