Blend together cream cheese, 1 tablespoon heavy cream and sugar until smooth.Fold in whipped topping.Spread mixture on pie crust.Whisk together 1 cup heavy cream and pudding mixes.Add in pumpkin and pumpkin pie spice and whisk until blended.Spread over cream cheese layer.Place in refigerator for several hours until set.Top with Cool Whip, if desired.