The featured movie here is Room, directed by Lenny Abrahamson and written by Emma Donoghue.
"In Akron, Ohio, 24-year-old Joy and her five-year-old son Jack live in a squalid shed they call Room. They share a bed, toilet, bathtub, television, and rudimentary kitchen; the only window is a skylight. They are captives of a man they call Old Nick, Jack's biological father, who abducted Joy seven years prior, and routinely rapes her while Jack sleeps in the closet. She tries to stay optimistic for her son, but is suffering malnutrition and is sometimes overcome with depression. She allows Jack to believe that only Room and its contents are "real," and that the rest of the world exists only on television."
Here is LWL's review
My illustration includes Jack's eye looking through the skylight and a leaf which is Jack's first experience of "real" thing from the outside world.