The alternative (for items without removeable bases) is to line the whole thing with clingfilm so the film hangs over the edge - you can then pull the cake out and peel the film away.
What follows is, like many of Payne's films, a road movie of sorts, winding its way through Wyoming and South Dakota, slate - colored skies hangingover pastureland and lonely blacktop, last - stop diners standing on the edge of nowhere.