Sibling Rivalry is a 1990 American black comedy film directed by Carl Reiner and starring Kirstie Alley, Sam Elliott, Jami Gertz, Bill Pullman, Carrie Fisher, and Scott Bakula.

Marjorie Turner has been married for eight years and is tired of her husband Harry's neglect and his snooty relatives, most of them doctors.

Calling a family meeting, Harry fills them in on the investigation, Jeanine bursts in, telling Marjorie about Nick protecting her by confessing.

Nick finally becomes successful selling blinds, Wilbur has become police chief and Jeanine moves in with him.

"[4] In contrast, TV Guide wrote, "Despite some rough patches when the heavy plotting threatens to overwhelm the proceedings, Sibling Rivalry is brash, madcap entertainment.

"[5] The review added, "Although some of the supporting roles aren't cast felicitously…the film generates enough belly laughs to coast over these over-played spots and emerge with its hilarity intact.

Whether the twists and turns of this complicated game of 'what to do with the body' would work as ingeniously well without Kirstie Alley is open to question.

In the wrong hands, her character could have seemed like a whiny neurotic, but Alley's ace timing, understated delivery, and verve result in a flawless comic creation--a goody two shoes who liberates herself from playing the constricting role that her in-laws and her own inhibitions prescribe.