Think back over your favorite blockbusters this year. How many of them starred women in leading roles? Chances are, the answer is slim to none. In 2014, women led 18% of the year's 50 highest-grossing movies, according to a study by BoxOffice.com. For every Jennifer Lawrence in "The Hunger Games," there's "Guardians of the Galaxy," "Captain America: The Winter Soldier" and "X-Men: Days of Future Past" -- all starring vehicles for (white) male actors. Unfortunately, this disparity is nothing new. Statistically speaking, male led films have trumped female led films for years. In 2013, men led 80% of the highest grossing movies released. The year before that, male actors dominated the box office by 84%. In 2011, it was by 88%. Yet it's still women who show up in theaters and fuel box office receipts. Last year, three out of five of the highest grossing films had female audiences that were higher than male audiences, according to data released by the Motion Picture Association of America. "Hunger Games: Catching Fire," "Despicable Me 2" and "Monsters University" were the three highest grossing films of 2013 that skewed female."Man of Steel" and "Iron Man 3" were the two remaining films that attracted male audiences. Female film fans "also drive ticket sales for movies that you wouldn't always expect," said Phil Contrino, vice president and chief analyst at BoxOffice.com. "Opening weekend of 'World War Z,' for example, more women showed up to the theaters than men." And women don't only represent in theaters; they're also largely behind the social media conversations that drive moviegoers to theaters. Susan Cartsonis, chairwoman at the Women in Film Foundation, said women are responsible for over 60% of messaging over social media. "The female audience is a very enthusiastic, underserved audience. We go to see movies with our girlfriends, men and children and we want to tell everyone we know about it," Cartsonis said. These social media conversations are not just limited to your regular female moviegoer. Mindy Kaling and Elizabeth Banks spread the good word about "Guardians of the Galaxy," which was both male led and the No. 1 grossing movie in the 2014 box office. Both stars reached well over 1 million Twitter followers in their posting. So women will fill movie theaters and tweet with abandon in support of some of Hollywood's biggest films. But for some reason, Hollywood seems incapable of making movies about and starring women. There is no easy answer as to why that is, but filmmaker Paul Feig believes the problem lies in a lack of strong material for actresses.