Complex sentence: The woman is 28-year-old Kathy H (Carey Mulligan), she narrates the movie and reminisces about her childhood at a boarding school called Hailsham House, as well as her adult life after leaving the school.
Split into simpler sentences: The woman is 28-year-old Kathy H (Carey Mulligan), the narrator. She reminisces about her childhood at a boarding school called Hailsham House, as well as her adult life after leaving the school.