Blueberry Banana Cream Pie

1 graham cracker crust
3 bananas
1 (8 ounce) cream cheese
1 (16 ounce) box powdered sugar
1 (8 ounce) Cool Whip
1 (21 ounce) can blueberry pie filling

Slice bananas in bottom of graham cracker crust.  Mix together cream cheese, powdered sugar and Cool Whip.  Pour on top of bananas.  Top with blueberry pie filling.  Chill at least one hour before serving.