Preheat the oven to 400 degrees.On an ungreased cookie sheet evenly place the fillo shells right side up, about one inch apart. Set aside.In a small saucepan, combine the cranberries and water stir. Top with a one inch piece of rosemary.Bring the sauce to a boil over medium heat, then reduce to low. Stirring until the cranberries pop, then immediately remove from the heat and discard the rosemary. Set aside. Slice the brie into 15 pieces and distribute into the fillo shells. Bake in preheated oven for about 5 minutes or until the brie is smooth and melted. Remove from oven and place 3-5 cranberries in each fillo shell. Garnish with small sprig of rosemary, if desired and serve immediately.