Academy Award-winning Harvie Krumpet director Adam Elliot returns to the world of clay animation with this simple tale of the innocent correspondence between a portly eight year old girl from the suburbs of Melbourne and a morbidly obese, middle-aged Jewish New Yorker suffering from Asperger's Syndrome. On the surface it would seem that Mary (Toni Collette) and Max (Philip Seymour Hoffman) would have little in common, but over the course of twenty years, the unlikely pen pals exchange letters discussing everything from taxidermy, trust, pets, religion, obesity, autism, agoraphobia, alcoholism, and just about any other topic that comes to mind as they sit down and put pen to paper. Barry Humphries and Eric Bana provide additional voices.