Box Office: 'Guardians' Poised to Beat 'If I Stay'; 'Sin City 2' Bombs, Falls to No. 6 — hollywoodreporter.com

More bad news rocked the North American box office Friday as New Line and MGM's young female YA tearjerker If I Stay slowed and Sin City: a Dame to Kill For quickly turned into a bomb. Starring Chloe Grace Moretz, If I Stay was widely expected to win the weekend with an $18 million-plus debut. Now, it is poised to take in roughly $16.3 million, meaning it will likely lose the No. 1 spot to Guardians of the Galaxy. If I Stay did win Friday with $6.8 million, but Guardians should overtake it on Saturday unless young girls turn out in force.

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