The film, starring Sandra Bullock, earned $31 million over the weekend, according to studio estimates Sunday. The Warner Bros. film has now made more than $170 million in three weeks.
Tom Hanks' Somali pirate docudrama "Captain Phillips" also held in second place at the box office, taking in $17.3 million in its second week.
"Gravity" and "Captain Phillips," both likely Oscar contenders headlined by veteran stars, were able to best the horror film remake "Carrie" in its debut weekend. The Sony film opened with $17 million.
The WikiLeaks drama "The Fifth Estate" opened poorly, taking in a paltry $1.7 million. Sylvester Stallone's "Escape Plan" debuted with $9.8 million.