Bad Teacher (2011)

Most people think so. 71% of audiences gave it a thumbs up, by Google's archived audience score. Critics scored it lower at 46%, but audiences disagreed.

A lazy, incompetent middle school teacher who hates her job and her students is forced to return to her job to make enough money for a boob job after her rich fiancé dumps her. Wikipedia ↗

Bad Teacher is a 2011 American comedy directed by Jake Kasdan. Cameron Diaz stars as Elizabeth Halsey, a lazy, manipulative, gold-digging middle school teacher who spends her class time showing movies while she naps, drinks, and schemes. When her wealthy fiancee dumps her, Elizabeth sets her sights on a new substitute teacher, played by Justin Timberlake, and competes with the annoyingly enthusiastic, genuinely caring teacher Amy Squirrel, played by Lucy Punch, for his attention while trying to raise money for breast implants by any means necessary.

Cameron Diaz committed fully to playing a genuinely terrible person, and the comedy derived from the shock of seeing a protagonist behave with such shameless selfishness in a school setting. Jason Segel appeared as the gym teacher Russell Gettis, whose genuine affection for Elizabeth provided the film's unlikely romantic resolution. Bad Teacher earned $216 million worldwide on a $20 million budget.