The festival announced Tuesday that Zellweger, who won a best supporting actress Oscar for "Cold Mountain" in 2004, will be part of the seven-member panel under veteran German-born filmmaker Werner Herzog.
They will be joined by Chinese actress Yu Nan; Italian writer-director Francesca Comencini; Spanish producer Jose Maria Morales; Somali-born writer Nuruddin Farah; and German actress Cornelia Froboess.
The festival runs from Feb. 11-21. The jury will announce the winners of the top Golden Bear honor and other awards on Feb. 20.