Place graham crackers in the food processor and pulse into fine crumbs.
In a medium bowl, combine graham cracker crumbs, melted butter, and sugar.
Line 8x8 pan with parchment paper. Press the graham cracker mixture evenly into the bottom of the pan. Chill in the refrigerator.
In a large bowl, mix softened cream cheese, cool whip, powdered sugar, and lemon juice until smooth. Spread into an even layer over the graham cracker crust. Chill for about 5 minutes.
Spoon blueberry pie filling over the cream cheese layer. Gently spread out the blueberries to cover the entire pan.