Entertainment Tonight will premiere 'Shrek the Third' teaser trailer tonight.

The teaser trailer will air on CBS at 7 p.m. during Entertainment Tonight. It should be available online right after the show.

When Shrek married Princess Fiona, becoming the next King and Queen of Far, Far Away wasn't part of the plan. So when his father-in-law, King Harold, falls ill, it is up to Shrek to find a suitable heir or he will be forced to give up his beloved swamp for the throne.

The film opens May 18th, 2007.

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