Celebrity Update Justin Timberlake has joined the cast of Columbia Pictures’ comedy Bad Teacher starring along with Cameron Diaz. It will be directed by Jake Kasdan and written by Lee Eisenberg & Gene Stupnitsky, the film is produced by Mosaic’s Jimmy Miller and begins production later this month.

The comedy stars Diaz as a foul-mouthed, gold-digging seventh-grade teacher who, after being dumped by her boyfriend, sets her sights on a colleague (Lucy Punch) who is dating the school’s model teacher (Timberlake). Jason Segel also stars as the school’s gym teacher while John Michael Higgins will play the principal. Molly Shannon and Eric Stonestreet also star. Jake Kasdan will direct from a script by Lee Eisenberg and Gene Stupnitsky.