In small mixing bowl, combine KELLOGG'S ALL-BRAN ORIGINAL cereal, flour, sugar and cinnamon. Using pastry blender, cut in margarine until crumbly. Set aside for topping.
Combine pie filling and lemon juice. Place in 9 x 9 x 2-inch baking pan or dish. Sprinkle topping over apples.
Bake at 375°F about 30 minutes or until bubbly around edges. Cool slighlty before serving.