UPDATED Cameron Diaz, Mike Myers had to sign anti-Twitter 'Shrek' contracts? Who's next?

Update: The studio (and contract clause) mentioned in this blog item, DreamWorks Studios,  is not affiliated with DreamWorks Animation that makes the "Shrek" films. Also, the contract clause for DreamWorks Studios is for writers releasing non-public information and  is not a ban on talent using Twitter. Cameron Diaz and Mike Myers have not been banned from Twitter. Thank God!

Miley Cyrus has stopped tweeting. So has Nine Inch Nails rocker Trent Reznor and British singer Lily Allen. 

Click here to see which stars have stopped tweeting and which ones really should.

Now there will be more bailouts as studios begin inserting anti-Twitter clauses in stars' contracts.

Darn! What will we do without leaks from Paula Abdul about quitting "American Idol" or  Ryan Seacrest breaking NBC former Co-Chairman Ben Silverman resigning or Greg Grunberg leaking information about next season's "Heroes"?

 According to the Hollywood Reporter, a recent talent contract from Disney includes a clause forbidding confidentiality breaches by way of "interactive media such as Facebook, Twitter, or any other interactive social network or personal blog."

Cameron Diaz and Mike Myers -- about to pair up for the next Shrek movie -- are said to have signed DreamWorks contracts with these anti-Twitter clauses.

What do you think? Are the studios desperately trying to control the release of information about their films and TV shows? 

More Twitter backlash dish:

Which stars will stop tweeting next? 

Photo: Anti-Twitter trendsetter Miley Cyrus. Credit: Getty Images