Though DreamWorks Animation SKG probably hasn’t popped the last celebratory bottle of champagne after the success of Shrek the Third, the studio is planning the fifth – and final – chapter in the daily life of everyone’s favorite ogre. The fourth Shrek is set to come to theatres in 2010, the only one the studio has expressly committed itself to make, but studio insiders say there are five chapters to the Shrek saga. Since the May 18 release of Shrek the Third, the ogre and his pals have raked in $643.6 million for Dreamworks. What will happen in the fifth film? Even the secrets of the fourth film have yet to be revealed, but it’s certain that Shrek will only be successful as long as Eddie Murphy (my personal favorite) remains involved.