For the Crust:

1. In a medium bowl, combine cookie crumbs, granulated sugar, and melted butter.
2. Press into the bottom and sides of a 9-inch deep dish pie plate.

For the Chocolate Layer:

1. In a large mixing bowl, beat cream cheese until creamy.
2. Add powdered sugar, vanilla, and melted chocolate, beating until combined.
3. Fold in whipped topping.
4. Spread evenly into prepared pie crust.
5. Chill in refrigerator while preparing peanut butter layer.

For the Peanut Butter Layer

1. In a large mixing bowl, beat cream cheese until creamy.
2. Add powdered sugar, peanut butter, and vanilla extract, beating until combined.
3. Fold in whipped topping.
4. Spread over the chocolate layer in the crust.
5. Return to refrigerator, chilling for at least 1 hour, or until firm.
6. Garnish with additional whipped cream and chocolate curls, if desired.
7. Cut and serve.