Carey Mulligan to play Daisy Buchanan in The Great Gatsby?

EXCLUSIVE: I'm told Warner Bros has emerged as the clear frontrunner to finance and take worldwide distribution on The Great Gatsby, the Baz Luhrmann-directed adaptation of F. Scott Fitzgerald's literary classic.
Leonardo DiCaprio as J. Edgar Hoover filming "J. Edgar", directed by Clint Eastwood

The film will star Leonardo DiCaprio, Tobey Maguire and Carey Mulligan. Carey Mulligan posing for an arty photoshoot
Carey Mulligan as Daisy Buchannan in The Great Gatsby film?

Luhrmann wrote the script with Craig Pearce. Given what is happening, recent reports that Luhrmann might not do The Great Gatsby seem completely unfounded. Though Luhrmann also has an original musical project and is refashioning his breakout film Strictly Ballroom as a stage musical, he has been squarely focused on Gatsby. He spent weeks recently reading top young actresses for the role of the manipulative Daisy Buchanan, before Luhrmann decided that Mulligan was the right fit to play alongside DiCaprio and Maguire (who’ll play narrator Nick Carraway). Warner Bros seems a good fit: the studio is home to DiCaprio's Appian Way, and he just starred in Inception; Warner Bros has also wanted to be in business with Luhrmann". Source: www.deadline.com

"Mulligan wears a sweeping gown that recalls the glamour of old Hollywood; the subtle but no less satisfying detail here is precise origami folds on the bodice. Giorgio Armani Privé chocolate-brown silk-satin bustier dress". Source: www.vogue.com