Isla Fisher Joining The Great Gatsby

NEW YORK, NY - MARCH 01: Isla Fisher visits "Late Night with Jimmy Fallon" at Rockefeller Center on March 1, 2011 in New York City. (Photo by Theo Wargo/Getty Images) *** Local Caption *** Isla Fisher Photo: Theo Wargo/2011 Getty Images

Baz Luhrmann is going to add a fellow Aussie to his 3-D adaptation of The Great Gatsby. The Hollywood Reporter says that Isla Fisher is in talks to come aboard the film as Myrtle Wilson, the mistress to Tom Buchanan (a role Ben Affleck is in negotiations for). She'd join Leonardo DiCaprio, Tobey Maguire, and Carey Mulligan in the movie ... looks like you're pot-committed now, Luhrmann. [Heat Vision/HR]