This particular one is narrated from the feminine point of view, written and directed by women, with Lea Thompson and Victoria Jackson talking directly to the camera. IMDb viewers rate it very low, but I don't really agree that it should be below 5.0. There are some much worse movies that are rated a point or a point and a half higher. It has some funny moments, and it has some fairly incisive thoughts about man-woman relationships, packaged in light comedy. As noted in several reviews, the IMDb voters are not kind to comedies.
People underestimate how hard it is to act in comedy.
Most actors aren't any good at it, and most comedians aren't any good at it. It is a special skill that requires one to be funny, but to stay in character and make the audience sympathize with you or hate you or whatever is necessary. So while it is possible that Lea Thompson and Victoria Jackson won't be stealing any roles from Francesca Annis, I think they are very good at this kind of character-based comedy. I watched them act in character, and I liked them. So the movie isn't that hard to watch.