Bad Teacher Or Bad Movie??

Rating: 7/10 (11 January 2015)

This movie is now several years old, bad reviews and word of mouth have put me off watching it, despite being a fan of Jason Segel. However it was on TV tonight, and in the absence of anything else to watch, I decided to give it a go.
Plot In A Paragraph: Elizabeth Halsey (Cameron Diaz) is a gold-digging teacher in Chicago, who swears at her students, drinks heavily, smokes marijuana, and shows movies while she sleeps through class. She plans to quit teaching and marry her rich fiancé, but when he dumps her after realizing she is only after his money, she must resume her job. She tries to win over substitute teacher Scott Delacorte (Justin Timberlake), who is also rich. Amy Squirrel (Lucy Punch), an overly enthusiastic teacher and colleague of Elizabeth, also wants Scott while the school's gym teacher, Russell Gettis (Jason Segel), makes it clear that he is interested in Elizabeth.
Despite It's great premise, it was not as funny as it should have been. It had its moments and I did laugh a few times. Diaz gives a good performance and Timberlake sends himself up brilliantly, John Michael Higgins is a lot of fun as Wally Snur, the dolphin obsessed principal. However Jason Segel is not given as much to do as one would hope, likewise the brilliant Eric Stonestreet as Diaz's roommate.