In a blender or food processor, crush the pretzels and mix with the sugar. Pour into a bowl and stir in the melted butter, until crumby mixture forms.
Press the crust into the bottom of a 9×13-inch baking dish. Place in the fridge, until other layers are ready.
In another mixing bowl, combine the cream cheese and powdered sugar, then fold in the whipped topping. Divide in half and spread half onto crust. Then spread the cans of cherry pie filling on top, then the remaining cream cheese layer.
Cover with plastic wrap and return to the fridge. Chill at least 2 hours, or ideally overnight, before cutting and serving.
Add broken pretzels on top before serving.