1-1/2 cups half-and-half, light cream, or milk
1 pkg. (4 serving size) Jell-O chocolate flavor instant pudding
3-1/2 cups (8 oz.) Cool Whip, thawed
1 cup chopped peanut butter cups
1 pkg. chocolate crumb crust
Pour half-and-half into large bowl. Add pie filling mix. Beat with a wire whisk until well blended, 1 minute. Let stand 5 minutes. Fold in whipped topping and chopped candy bars. Spoon into crust. Freeze until firm, about 6 hours or overnight. Remove from freezer and let stand 10 minutes to soften before serving. Store leftover pie in the freezer.