Quoth Sarah Morayati (found in TV Tropes)

“If a smash hit has mostly male characters, nobody raises an eyebrow, but if it has mostly female characters, it’s a Great Big Anomaly worth several trees’ worth of shocked speculation.”

What also usually happens is that a movie with a primarily female cast is going to be considered a “chick flick” by many, while movies where there’s at best a token female are considered simply as “Action Movies”, “Adventures”, “Comedies” and so on, rather than “Dude flicks”.