When Marianne and Margaret stand on top of the hill in the rain, Marianne's dress is wet. When she runs down the hill, it is suddenly mostly dry. Then, when she trips and falls down, her dress changes to totally sodden through and dirty.
When Marianne and Elinor return from London and join the Palmers at their estate, Marianne walks to the top of the hill to see Willoughby's estate. Elinor is inside by the window. First Mr. Palmer hands her a cup of tea, which she takes from his hand. The next shot is of Marianne, and then it cuts back to Elinor. She no longer is holding a cup, and Mrs. Palmer pours another cup and hands it to her.
In the dance scene, when Elinor ducks between the dancers on first pass, she is wearing a shawl low on her arms. When she comes back between the same row of dancers only a second later, she is not wearing the shawl.
The Dashwood sisters would have been wearing mourning-black after their father's death; Elinor is shown wearing white.
Marianne plays three different contemporary keyboard instruments, but each sounds like a modern grand piano.
When the fiddler exits the church at the wedding, the fiddle is fitted with a chin-piece, which was not used on fiddles until the 20th century.
Set around 1810, Edward Ferrars refers to Vladivostok, a city not founded until 1860.
This story, set in 1810, mentions Belgium, a country that did not exist until its separation from the Netherlands in 1830.
When Mrs. Dashwood stands alone looking at the paintings on the wall in Saltram House, there is a portrait of Oscar Wilde. The movie takes place in 1810; he would not be born for another 44 years.
There is a mismatch between Marianne's keyboard actions for "The Dreame" and the sound it produces.
When Margaret has her back to the camera in the library, the battery-pack microphone attached to her waist is visible.
The scene at Norland where Edward is reading the poem is set in the evening. The following scene, where the Dashwoods receive the letter from Sir John Middleton, occurs in the afternoon. The next scene, between Marianne and Elinor in the bedroom, occurs again at night, but it is referred to as if it had happened earlier the same evening.