Bad Teacher is a 2011 American comedy film directed by Jake Kasdan and written by the writing team of Lee Eisenberg and Gene Stupnitsky.

Starring Cameron Diaz, Justin Timberlake, Lucy Punch, John Michael Higgins, and Jason Segel, the film tells the story of a middle school teacher who hates her job, her students, and her co-workers, but returns to teaching after her wealthy fiancé breaks up with her.

Elizabeth Halsey is a lazy and immoral teacher at John Adams Middle School in Chicago.

She plans to quit teaching and marry her wealthy fiancé Mark, but he dumps her when his mother shows him that Elizabeth is only after his money, so she resumes her job.

They dry hump and Elizabeth leaves Amy a message through Scott's phone, recording all the action.

After her student Garrett is taunted by his classmates for getting rejected by a superficial girl, Elizabeth consoles him and helps make him popular, which prompts her to begin reflecting on herself.

Having been indirectly informed that Amy had switched desks with her, Elizabeth states that teachers in the school use drugs.

When the police bring a sniffer dog to search the school, they find Elizabeth's mini liquor bottles, marijuana, and OxyContin pills in Amy's classroom, in Elizabeth's desk, leading to Amy getting arrested and transferred to another school by the superintendent.

Scott asks Elizabeth to start over, but she rejects him in favor of Russell, having learned they have a lot in common.

Bad Teacher was directed by Jake Kasdan based on a screenplay by Lee Eisenberg and Gene Stupnitsky.

The website's consensus reads: "In spite of a promising concept and a charmingly brazen performance from Cameron Diaz, Bad Teacher is never as funny as it should be.

[1] Roger Ebert gave the film 2 stars writing "there is no chemistry, or indeed even much mutual awareness between Diaz and Timberlake.

"[14] Common Sense Media notes "Parents need to know that this raunchy comedy about a jaded, selfish, foul-mouthed middle-school teacher will likely attract teen fans expecting an over-the-top Apatowian laugh-fest, but what you get instead is an underwhelming film that's long on unlikeable characters (even though they're played by appealing stars like Cameron Diaz and Justin Timberlake) and short on wit or insight."