LONDON — Philip Seymour Hoffman has signed on to voice the co-lead role of Max in Icon’s Aussie stopmotion claymation feature “Mary and Max.”

Pic looks at the unlikely pen-pal friendship between Mary, a chubby lonely 8-year-old girl in Melbourne, Australia, and Max, a 44-year-old, severely obese, Jewish man with Asperger’s Syndrome living in New York.

The film is the first feature from helmer Adam Elliot and producer Melanie Coombs, whose animated short “Harvie Krumpet” won the 2004 Oscar for animated short.

“Mary and Max” is financed by Screen Australia, Adirondack Pictures and Film Victoria, and is being sold internationally by Icon Entertainment International.

“That one of the most ‘in demand’ actors in the world would agree to voice an independent Australian animation speaks volumes for the creative integrity of this project,” commented Mark Gooder, CEO of Icon Film Distribution.

Previously announced Oz voice cast includes Toni Collette, as Mary, and Eric Bana. The film is narrated by Barry Humphries.