Philip Seymour Hoffman has joined the voice cast of Aussie claymation project "
Mary and Max," taking the lead role of Max, the film's backers said Wednesday.
The feature debut from the Oscar-winning duo of writer-director Adam Elliot and producer Melanie Coombs stars Toni Collette as Mary. Elliot and Coombs won the 2003 short-film Oscar for "Harvie Krumpet."