Bad Education - Rotten Tomatoes
Alma movie: Notes on a Scandal (2006)

Give Sheba Hart (Cate Blanchett) credit for one thing: she's got good taste in music, However, when she's not rocking out to the Streets and Toots and the Maytals, she's bonking one of her students and sharing intimate details of her misdeeds with one of her least trustworthy colleagues, the Machiavellian Barbara Covett (Judi Dench). In addition to her ethical lapses, Sheba's profoundly lacking both discretion and common sense; it's tough to do your job effectively when you're showing favoritism toward a 15-year-old in the classroom and being emotionally manipulated everywhere else.