In medium bowl, combine crumbs, sugar, cinnamon. Add melted butter, press down flat into a 9-inch springform pan. Set aside
For Filling
Beat cream cheese until smooth, add pumpkin puree, eggs, egg yolk, sour cream, sugar and spices. Add flour and vanilla. Beat together until well combined.
Pour into crust, spread mix evenly and place in oven for 1 hour. Remove from oven and let sit for 15 minutes. Cover with plastic wrap and refrigerate for 4 hours.