Follow the directions on the box to make the vanilla pudding. When that's ready, mix the container of whipped cream with the pudding.
In a 9x9 dish, start with a layer of whole graham crackers. Layer with the pudding mix. Create as many layers as you like, I usually have three layers of graham cracker and two layers of pudding mix. Be sure the top layer is graham cracker.
Add the can of blueberry pie filling and refrigerate for two hours.
If you are really ambitious, use fresh blueberries and create the topping from scratch. Also delicious but obviously takes more time.