CRUST
In a medium bowl, combine the graham cracker crumbs and cinnamon. Add the melted butter to the crumbs. Using a fork, mix well. (You want every crumb coated in the butter as this will be the glue that holds it together.)
Pour the graham cracker crumbs into the sprayed springform pan. Pat them flat with your hand and then use a kitchen glass to press flatter. Start at the center and work out to and up the sides. Set aside.
FILLING
In a large mixing bowl, beat the cream cheese and sugar with a hand-held mixer until creamy and smooth.