Third "Chipmunks" film got a release date

20th Century Fox's are now preparing for the third installment of "Alvin and the Chipmunks" which will be in 3D.

According to Variety, "Studio has set a release date of Dec. 16, 2011 for "Alvin and the Chipmunks 3D.".

The first two installment raked in $791 million in theaters worldwide.