Preheat oven to 375 degrees F.
Unroll cresent roll dough into 4 rectangles; firmly press perforations together to seal.
Combine cream cheese and sugar. Beat together until well combined. Spread onto dough rectangles to within 1/2" of edges.Top evenly with blueberries. Bring opposite edges together, press together and seal. Place on ungreased baking sheet.
Bake 11-13 minutes or until golden brown.
Sprinkle with powdered sugar just before serving.