
Sibling Rivalry
She did it. And boy, is she sorry.
Directed by Carl Reiner
Produced by Castle Rock Entertainment, Nelson Entertainment
A dark comedy built on marital dissatisfaction and mistaken identity, where an affair gone wrong spirals into complications and cover-ups.
Marjorie Turner is suffocating in her marriage and day to day life. An extramarital affair with a stranger seems to be the answer until her paramour has a fatal heart attack, and turns out to be less of a stranger than she could have thought...
Questions people ask
Is Sibling Rivalry violent? Not especially. Less violent than 64% of films.
Does Sibling Rivalry end with hope? Not especially. Less hopeful than 64% of films.
Is Sibling Rivalry sad? Not especially. Less sad than 59% of films.
Is Sibling Rivalry scary? About average. Almost exactly mid-range.
Is Sibling Rivalry easy watching? About average. Almost exactly mid-range.
These describe how the film comes across, measured across the whole film and compared with other well-known films. They are not a content list — nothing here was counted or checked scene by scene, so for age-suitability or specific content use a classification board or a dedicated content-warning service.
Cinnamon Score
How much this film gives you that nothing else will, and whether it delivers.
Conventional, and it does not land.
How unlike any other film this one feels
How much more it delivers than it promises
How much audiences actually like it
Ensemble












Like Sibling Rivalry
Nearest across the full emotional profile.
Same Mood as Sibling Rivalry
Nearest on what's most distinctive about this one.
Like Sibling Rivalry, But Darker
Similar, pushed toward heavier and more intense.
Like Sibling Rivalry, But Lighter
Similar, pushed toward warmer and easier.
Like Sibling Rivalry, But Less Popular
Same territory, far fewer people have seen it.

















































