To prepare crust, combine crumbs, margarine, and sugar in a mixing bowl. Press mixture firmly in a 9" pie pan. Chill one hour, or until firm. Or, bake in a 350 oven for ten minutes or until lightly browned. Cool on rack before filling. Meanwhile, to prepare filling, combine pie filling, sweetened condensed milk, pudding mix, and whipped topping in a mixing bowl. Arrange a layer of bananas over crust. Top with half of filling. Repeat with second layer of bananas and filling. Refrigerate ten minutes or until ready to serve.