"Orange are Not the Only Fruit"

I have watched a few minutes of the movie "Orange are Not The Only Fruit" on YouTube. I notice that the language is a little different from what I have read in the book. I thought the Characters were younger especially Jeanette's mother. Seeing Jeanette's mother friends, The church look more like a circle of friend. A group of retired girl who make of their occupation the study of the bible. In the movie Jeanette doesn't find out about her adoption by looking in a drawer but her mother told her at an early age.  The background or the set of the story gives the impression that the story takes place at an epoch older than 1985 the year of the publication of the novel. Unlike Philip K. Dick, Winterson project a story into the past instead of a futurist one.