10 Biggest Valentine's Day Weekend Openers: Hearts, Horror and Horrible Superhero Movies (Photos)

History tells us hearts-and-flowers films like “The Vow” and “Hitch” can carry the Valentine’s Day box office, but so can movies about monsters, murderers and Marvel superheroes.

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9) "The Wolfman": This 2010 release raked in over $31.4 million when it was released two days before Valentine's Day.