Why so much weiner?

My last post kinda brings me to this post. And basically, it is a simple question. My question is this; why will they show a mans penis in a movie, but they will not show a vagina? Its a good question. Im sure you have watched a movie and boom! weiner, you say to yourself, "oh man that sucks, I dont want to see a weiner." How many times have you watched a movie and saw a vagina? I mean the entire vagina, not just a girl standing there with no bottom on? Exactly. Hollywood shows too much dong, not enough vag. What a world.