NEW YORK — Blade Runner 2049 opened surprisingly weakly at the box office, debuting with an estimated $31.5 million.

That's a disappointing start for a highly touted, well-reviewed sequel that cost at least $155 million to make. A $50 million opening had been targeted.

Ryan Gosling stars as Officer K in 'Blade Runner 2049.'

The problem Blade Runner 2049 ran into is clear from opening-weekend data. The audience was overwhelmingly male and over the age of 25. Blade Runner 2049, starring Ryan Gosling and Harrison Ford, failed to pull in moviegoers beyond fans of the 1982 original.

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Also: Do you need to see the original 'Blade Runner' to enjoy '2049'?

The Kate Winslet-Idris Elba adventure romance The Mountain Between Us debuted in second with $10.1 million. The Stephen King horror hit It followed in third with $9.7 million in its fifth week. The animated My Little Pony: The Movie finished fourth with $8.8 million, while the spy spoof sequel Kingsman: The Golden Circle was fifth with $8.1 million.

Figures numbers are expected Tuesday.

Contributing: Kim Willis