Full-frontal images of a vagina are available on cable Sunday night, but they come at a price. You have to watch a bloody, hairy baby burst through that vagina, and before that you have to watch the little creature in utero, growing in all its Operation Rescue propaganda detail, in the National Geographic Channel's latest unveiling of the hideous miracle of life. "In the Womb" is actually a cool, beautiful movie, a celebration of computer imaging and the 4-D ultrasound. It exhibits a minimum of politics, probably because it appears to have been made in England, where the acknowledgement that...