'Star Trek Into Darkness' wings in at No. 1 but not at warp speed

"Star Trek Into Darkness" opened atop the U.S. box office, though its debut didn't quite make the jump to warp speed that Paramount Pictures executives expected.

"Into Darkness," the second J.J. Abrams-directed installment in the long-running science-fiction franchise, took in $70.55 million over the weekend, according to studio estimates, bringing its total take to $84 million. The movie launched Wednesday in 336 IMAX locations before opening wide Thursday.

The "Star Trek" movie was the weekend's only major studio release. Of the holdovers, "Iron Man 3," which led the box office the past two weeks, came in second, with $35.1 million, bringing its total to $337 million. "The Great Gatsby" enjoyed a decent, second-weekend hold, dropping 54% for a $23.4 million weekend. Baz Luhrmann's eye-popping take on F. Scott Fitzgerald's classic novel has now grossed $90.1 million.

Overall, the weekend came in around $150 million, up 10% from last year when "Battleship" was the big studio bow. With high-profile sequels "Fast & Furious 6" and "The Hangover Part III" arriving next week, forecasters believe the upturn will continue.