'Guardians of the Galaxy' retakes box office, passes 'Transformers' for summer's top film

"Guardians of the Galaxy" became the summer's top-grossing movie at the North American box office with a $17.6 million weekend that narrowly bested the young adult melodrama "If I Stay."

With an estimated $17.6 million in its fourth weekend of release, the Marvel space adventure passed "Transformers: Age of Extinction" to become the summer's biggest domestic hit with a cumulative total of $252 million.

The Warner Bros. tearjerker "If I Stay" failed to top the box office with a weekend haul of $16.4 million, according to studio estimates Sunday. The Chloe Grace Moretz film came in third place behind the reptile reboot "Teenage Mutant Ninja Turtles," which made $16.8 million.

The Weinstein Co.'s long-delayed "Sin City" sequel, "A Dame to Kill For," flopped. It opened with just $6.5 million.