The Glass Room (novel) is a fantastic story about a house. the people whose lives are connected to it, their relationships, and the transformations of the country it is in.
The Glass Room (Film) is a mess.
Everything that was great about the book is missing from the film. The characters are mere cardboard cut outs of those that grow and develop so wonderfully in the novel. No time is spent establishing any of them, nor their relationships.
The star of the novel, the house, is never shown in its glory in the film, only a few overly repeated angles that never let the house truly shine. And the many significant historical milestones are flipped from one to the other as if mere inconveniences.
Those who have not read the book must spend the first 30 minutes of the film in complete and utter confusion, barely having a clue who each person on screen is and what they mean to each other.
As such they will be frustrated. Likewise those who enjoyed the book, seeing its essence removed and only a watery reflection of it remaining. Those who watch based on the marketing, especially from the US where it goes by the thoroughly misleading title The Affair, who think they are watching a Lesbian love story will be frustrated for the most part.
A real shame that such an excellent story, cast and location are wasted on this terrible film.