Robert D. Ruplenas If this movie had stuck with its black comedy premise all the way to the end it might have been a memorable film, as. e.g., the later "War of the Roses." As it is there is some marvellously funny dialogue in the first 2/3 of the movie, as well as some hilarious slapstick in the hotel room when Allie's and Pullman's characters are deciding how to deal with the corpse. The portrayal of the husband's all-doctor family is pretty good, too. Unfortunately all of this is wasted in pursuit of the prized Happy Ending, wherein Marjorie's infidelities are seen as a stepping stone to a fuller relationship with her chastened husband. Puh-leez.

boggajons Sibling Rivalry is one of those typical late 80´s early 90´s movie that came along. Some people saw it in the theater and some people rented it but never came a cult hit or a box-office smash and has now been forgotten. This does not mean that this movie is bad or movies of this sort are bad. On the contorary these films are actually quite entertaining and help you to get into good mood and this film falls into that category.It is short, funny, exciting and has some great acting. Jamie Gertz and Kirstie Alley are great as the sisters and the supporting actors and actresses to a good job.One of the things that bothers me is that they don´t show the cover that was used on the tape where I live where you see Kirstie Alley covering up her face with a blanket or a sheet. It is one of the all time greatest movie posters I have seen.

kenandraf B-movie comedy that starts well but wraps up weak towards the end although if one is a big Alley fan,you won't really mind for she is so funny and sexy here.Below average screenplay,directing and cinematography.Only for the actors fans and big romance situation comedy fans......

Mothra-4 I saw Sibling Rivalry when it was showing at the local theatre. It was the only time in my entire life that I have ever fallen asleep in a movie theatre. And, believe me, it wasn't because the seats were really comfortable. This movie is dull. Worse than watching paint dry. I would rather read a telephone directory than watch this film again.