Justin Timberlake, Molly Shannon, Eric Stonestreet Join Cameron Diaz And Jason Segel In 'Bad Teacher'

Ensemble comedies are awesome. Especially when they boast a cast like the one coming together for "Bad Teacher." The comedy comes from "Walk Hard" director Jake Kasdan working off of a script from the powerhouse "Office" (and "Ghostbusters III") writing duo of Lee Eisenberg and Gene Stupnitsky. We also know that Cameron Diaz, Jason Segel and Lucy Punch, star of CBS' "The Class," will headline.

Today, Sony revealed that a few more have joined the cast. Justin Timberlake, who will also star in Facebook biopic "The Social Network," is the big get; he'll star alongside Diaz, Segel and Punch. Also joining the cast are "Saturday Night Live" alum Molly Shannon and "Modern Family" star Eric Stonestreet.

We don't know a whole lot about the story just yet. Diaz leads the cast as the titular lousy junior high teacher, a crass woman who has just been dumped by a man she'd come to depend on... financially. Now free to pursue other romantic interests, she sets her sights on a fellow teacher, which pits her against another teacher, a more popular one. There's no word on Shannon's or Stonestreet's role, but Timberlake will play a substitute who stands to one day inherit his family's watch fortune.

Diaz and Timberlake should make for an interesting on-screen pairing, since the two used to be romantically involved in real life. One wonders if Kasdan and company will play with that history in the film, and how Timberlake's character will factor into the love triangle that will presumably involve Diaz, Segel and Punch. If Diaz's character is in fact a gold-digger, maybe she's fated to end up with Timberlake's sub anyway.

One thing is certain: we have plenty of time to wonder. At last report, "Bad Teacher" was targeted for a 2012 release.

Do you like this casting news? Do you hope to see some reference made to Timberlake's and Diaz's shared history?

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