“Notes on a Scandal” (2006) – “Keep your friends close; keep your enemies closer.” – Sun Tzu Barbara (Judi Dench) is history teacher at a London high school, and she’s been in the classroom for decades and nearing retirement. It couldn’t come quick enough, as her patience is as thin as Timothee Chalamet on a hunger strike. Never married and a social loner, Barbara is unhappy, but her mood turns when Sheba (Cate Blanchett) – a beautiful, tall, and cultured 30-something – arrives on campus to teach art. Since Sheba…