Star Trek Into Darkness has topped the US box office but failed to beat the opening weekend of the previous Star Trek film.
The film took 70.6 million dollars over the weekend according to early estimates.
The 2009 Star Trek film took 75.2 million dollars for its opening weekend.
Into Darkness knocked Iron Man 3 into second place with 35.2 million dollars .
JJ Abrams' second Star Trek film was expected to open with 100 million dollars.