Preheat oven to 300°F. Combine graham cracker crumbs, sugar, and butter; press firmly on bottom of 9-inch springform pan. In large bowl, beat cream cheese until fluffy. Gradually beat in sweetened condensed milk until smooth. Add eggs and lemon juice; mix well. Pour into prepared pan. Bake 50 to 55 minutes or until center is set. Remove from oven; top with sour cream. Bake 5 minutes longer. Cool 1 hour. Chill at least 4 hours. Garnish with pie filling. Store leftovers covered in refrigerator.