Cut Angel Food Cake in half horizontally; then cut each layer in half until you have 1 to 1 1/2 inch-wide sections.
Cut each section into one-inch cubes; set aside.
In a large mixing bowl, beat cream cheese and confectioners’ sugar until smooth.
Add 8-ounces of Cool Whip and beat again.
Stir in Angel Food Cake cubes.
Spread half of the angel food cake mixture into a trifle dish.
Spoon one can of blueberry pie filling over top.
Spread remaining angel food cake mixture on top of the blueberry pie filling.
Top with remaining can of blueberry pie filling.
Spoon remaining whipped topping in center of the trifle dish leaving at least a two-inch border around the outside edge.
Sprinkle with blueberries and raspberries, if desired.
Refrigerate until ready to serve.