I think also the genre romance and genre action movies and books have their own weird fantasy rules that make a barrier for entry to new viewers. If you're an outside looking in you're gonna be so freakin confused as to how illogical it is and it may just take you right out of the story. So, as a girl who wasn't raised around girl stuff (I have all brothers) I don't like most romance movies. Some are all right, but I usaully like the older movies with older plotlines like Jane Austen, that don't have the weird modern romance fantasies that to me just don't make sense and aren't as fun to watch (like I made my bro watch "While you were Sleeping" with me because I knew he'd hate it and he was like "so are all romance movies full of pathalogical liars???" and it was like "yes, welcome to romance movies where nothing makes sense, half of these people should probably be arrested").
Instead I like action movies, becuase that's the type of fantasy I prefer and the fantasy that I have a nostalgic feel for. Thing is, if I show an action movie to a freind that doesn't like action movie, I know they're not going to love the long choreography of all the fights and will probably be like "OK you can't just shoot an arrow, grab it in mid-air, and then stab a guy in the throat with it." And these fantasy rules in both action and romance are just never explained at any point to viewers that are new to it. If you grow up with it--you never think it's weird, but youknow...it's kind of weird.
So to me it's not as much a girl vs guy thing as far as the chemical makeup of our brains go, I think it's more about what you were exposed to when you were younger, and if you have ever learned to enjoy those unspoken fantasy rules of both types of movies/books