Sometimes when I'm reading a script for coverage, I want to grab a red sharpie and scrawl MALE SCREENWRITER FANTASY across the title page before tossing it into the trash. What I mean by MSF is that instead of writing real, well-developed, multi-dimensional women, male screenwriters sometimes write a woman they wish existed. This often manifests itself in overt sexuality, like the "ample cleavage" cliche that The Bitter Script Reader has blogged about.
Some examples of MSF:
1. All the women in your script sleep with (or attempt to sleep with) your male protagonist, even though he is an average-looking slacker with no job, purpose or attractive qualities.
2. Your physical descriptions of female characters are all highly sexualized, even if the characters are only in one scene and we never see any of their sex lives. Do we really need to know that FEMALE COP #1 has a great rack? (This especially bugs me because I bet you don't get into this kind of detail with your male characters.) Describing them as attractive is fine; I know that actors want to play attractive people. It's the over-sexualization that's problematic.
3. Sex scenes are graphic and/or numerous, even though they have nothing to do with the plot.
4. Women are completely helpless and need your male characters to save them from everything.
To be fair, I'm sure there is plenty of Female Screenwriter Fantasy out there...maybe I just don't see as much of it since male screenwriters still outnumber female ones in Hollywood. I admit that I've been guilty of writing male characters who would fit my own fantasies by being too perfect. For me, they're usually thoughtful, handsome, charming, brilliant, hilarious, employed guys who actively pursue their goals. (Somehow I think that's less offensive than misogyny, but I'm working on it nonetheless.) Writing about fantasies isn't always a bad thing, since wish fulfillment is part of a lot of great movies. But like great villains, all great characters - love interests, sidekicks, cops we see for ten seconds - should be the heroes of their own stories, not just the fantasies of writers.