Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: 300: Rise of an Empire did not equal its predecessor's first weekend tally of $70.9m (£42m) in North America, but still performed far above expectations. "Clearly we captured a much broader audience than we anticipated," Warner Bros executive Jeff Goldstein said. Set in ancient Greece, it depicts a sea battle between Greeks and Persians. The film only briefly features 300 star Gerard Butler as King Leonidas - leader of the Spartan army who famously held off a vastly superior Persian force - concentrating instead on a female warrior played by Casino Royale's Eva Green. Her participation is understood to have boosted the female audience for this male-skewed release to 38% - a 9% increase on the original's 29%. Outside North America, the film was also the top draw in Brazil, Russia, Mexico, Germany, Spain, Italy and the UK. Some $12m (£7m) of its opening weekend tally from the 58 markets in which it played came from 3D Imax screenings. In the US and Canada, Noam Murro's follow-up to Zack Snyder's comic book-inspired original comfortably saw off Mr Peabody & Sherman, its nearest competitor. The animated title about a time-travelling dog and his human son, which opened in the UK on 7 February, took $32.5m (£19.4m) between Friday and Sunday, according to studio estimates. Liam Neeson's airborne action film Non-Stop - last week's number one - fell to three in this week's chart, taking $15.4m (£9.2m) in the US and an additional $12m (£7m) worldwide. Toy spin-off The Lego Movie and the Christianity-themed Son of God rounded out this week's top five, according to box office tracking firm Rentrak.

300 sequel slays competition at US box office