AMAZON WOMEN ON THE MOON - A collection of comedy sketches; the most elaborate is a spoof of 1950s science-fiction movies. Lots of filmmakers, lots of opportunities, lots of bad taste, very few laughs. Directed by Joe Dante, Carl Gottlieb,Peter Horton, John Landis, and Robert K. Weiss. (Rated R) FATAL ATTRACTION - A married man spends an illicit weekend with a woman he's just met, then finds himself and his household threatened by her unbalanced personality. The style is slick, the action is suspenseful, and despite the explicitness of the sex scenes, the message is against extramarital affairs. But the atmosphere of emotional violence is creepy even before it spills into physical mayhem. And supporters of female dignity may rightly howl over the portrait of a woman scorned as a monster unleashed. Directed by Adrian Lyne. (Rated R) GAP-TOOTHED WOMEN - Respected documentary-maker Les Blank celebrates a special kind of beauty in this good-natured look at Lauren Hutton, Sandra Day O'Connor, Chaucer's Wife of Bath, and a long list of not-famous women who smile for the camera and talk happily about their teeth. (Not rated) IN THE MOOD - A randy 15-year-old has affairs with two older women, and winds up in jail, before finally settling down with a girl his own age. The story is in very questionable taste, even if it is based on true events. At least director Phil Alden Robinson moves the action at a refreshingly relaxed pace. (Rated PG-13) I'VE HEARD THE MERMAIDS SINGING - An ordinary young woman develops a complex relationship with a sophisticated art-gallery curator. There's a subplot about homosexuality and a bit of four-letter language. The film's main business, however, is to tell a simple and delicate story that celebrates the unique importance of every human personality. Written and directed by Patricia Rozema, a gifted Canadian newcomer. (Not rated) MISS ... OR MYTH? - Documentary about the Miss California Pageant and a ``Myth California Pageant'' held as a protest each year. It's hard to tell whether directors Geoffrey Dunn and Mark Schwartz intend this, but few individuals on either side of the issue seem compelling in their points of view. (Not rated) THE MOZART BROTHERS - An opera director drives his colleagues crazy with his loony-tune ideas about staging ``Don Giovanni.'' Although the comedy is a mite vulgar in spots, its satire is artfully written and directed, and opera lovers will find many occasions for a chuckle of recognition. Suzanne Osten directed the Swedish production. (Not rated) THE PRINCESS BRIDE - Some of the violence seems way too intense for younger children. Otherwise, action and laughs blend deliciously in this fairy-tale spoof about true lovers who must defeat all sorts of villains to reach true happiness. Cary Elwes is a marvelously funny as the hero; Mandy Patinkin and Wallace Shawn energetically lead the colorful supporting cast. Rob Reiner directed the romp, from William Goldman's screenplay. (Rated PG) RATINGS: Films with ratings other than G may contain varying degrees of vulgar language, nudity, sex, and violence.