Turns out this online article is incorrect. However the print edition of The Hollywood Reporter announces a different and correct version; Cate Blanchett has not signed on yet but she IS in negotiations for a part in the fourth Indiana Jones film!
Cate Blanchett in
The Good German.
DreamWork's offices have confirmed this news to TheRaider.net.
Original: The Hollywood Reporter announced earlier today that Cate Blanchett has signed on to star in Indiana Jones 4. With David Koepp's screenplay shrouded in secrecy, it is unclear what character Blanchett will play. But wow, I bet nobody saw this bit of exciting casting choice coming!
Shooting will begin in June in Los Angeles and at undisclosed locations around the world. Paramount Pictures will release "Indy 4" day-and-date around the world on May 22, 2008, with a handful of territories opening the following day.
Blanchett, who is filming David Fincher's The Curious Case of Benjamin Button, next will lend her voice to Wes Anderson's The Fantastic Mr. Fox. In addition to her Academy Award win for The Aviator, she received a supporting nomination this year for her role in Richard Eyre's Notes on a Scandal.
Head over to The Hollywood Reporter to read the original announcement.