Combine crumbs and butter. Firmly press into bottom and up the sides of a 9" pie plate. Chill. Blend cream cheese, sugar, eggs, vanilla and lemon juice. Pour into prepared crust; bake at 325 degrees for 25 minutes. Remove from oven. Cook 5 minutes. Meanwhile, in a small bowl, combine sour cream, sugar and vanilla. Spread over pie, bake 5 additional minutes. Cool to room temperature; refrigerate at least 5 hours.
*Or use a 9" prepared graham cracker pie crust.