Australian actor Eric Bana is set to play a gaylove interest in his new film.

The 39-year old, who has starred in several Hollywood blockbusters including Hulk, Black Hawk Down, Troy and Munich, will take on his most unusual role yet as the voice of the gay love interest of a Kiwi sheep farmer named Desmond.

According to news.com.au, Bana will voice the character in Oscar winner Adam Elliot’s first feature-length film, Mary Max.

“It is a simple tale of pen-friendship between two very different people,” according to IMDB.com

“Mary Dinkle, a chubby lonely eight year old girl living in the suburbs of Melbourne, and Max Horovitz, a 44 year old, severely obese, Jewish man with Aspergers Syndrome living in the chaos of New York.

“Spanning twenty years and two continents, Mary and Max’s friendship survives much more than the average diet of life’s ups and downs.

Mary and Max is innocent but not naïve, as it takes us on a journey that explores friendship, autism, taxidermy, psychiatry, alcoholism, where babies come from, obesity, kleptomania, sexual difference, trust, copulating dogs, religious difference, agoraphobia and much much more.”

Elliot is best known his Academy-Award winning 23-minute claymation masterpiece Harvie Krumpet.

Bana, who currently resides in Australia with his wife and two children, previously voiced the character of a shark in 2003’s Finding Nemo.

Melbourne-based animator Elliot has also recruited Toni Collette to voice Mary in his $8.5 million (£3.75m) plasticine-character adventure, while Barry Humphries is the narrator.

Mary Max is due for cinematic release in late 2008.