In a 2 quart jar or bottle combine the Pinot Noir, orange liqueur, orange juice, blackberries, and orange slices. Muddle up the blackberries in the bottom of the bottom. Refrigerate for at least 4 hours to get the best flavor.
When ready to serve pour ice into 4 glasses. Divide the sangria between the glasses. Top with a pinch of cinnamon. Garnish with 1 blackberry and 1 orange slice.