Heat oven to 400°F. In medium saucepan, combine pie filling and blackberries. Cook and stir over medium heat until mixture is hot and bubbly. Pour into ungreased 8-inch square (1 1/2-quart) glass baking dish.
Separate dough into 5 biscuits. Cut a triangular notch in each biscuit to form top of heart. Put notch on bottom of biscuit to form tip of heart. Place on top of hot fruit mixture. In small bowl, combine sugar and cinnamon; mix well. Sprinkle over biscuit hearts. Sprinkle sliced almonds over top.
Bake at 400°F. for 15 to 20 minutes or until fruit is bubbly and biscuits are deep golden brown.