Unroll crust into a 9-in. pie plate; flute edge. Refrigerate 30 minutes. Preheat oven to 400°. , Line crust with a double thickness of foil. Fill with pie weights, dried beans or uncooked rice. Bake on a lower oven rack or until edge is golden brown, 15-20 minutes. Remove foil and weights; bake until bottom is golden brown, 3-6 minutes longer. Cool on a wire rack. , In a large saucepan, melt 2 oz. chocolate and butter over low heat, stirring constantly; spread or brush over the bottom and up the sides of pastry shell. Chill., Meanwhile, in a large bowl, beat the cream cheese, sour cream, sugar and vanilla until smooth. Spread over chocolate layer; cover and chill for 2 hours. , Arrange strawberries over the filling; brush with jam. Melt the remaining chocolate and drizzle over the top.