"Stoker" with Mia, Firth & Kidman?

Watching the Oscar Roundtable discussion which included Colin Firth and Nicole Kidman, I was thinking that it would be great to see the two of them in a film together. If current talks proceed, it looks like that just might happen! The LA Times reports that Nicole Kidman and Colin Firth are negotiating to join the film, which already has Mia Wasikowska confirmed for the leading role.

Colin Firth, Mia Wasikowska, Nicole Kidman

Update (Mar 7): The role of the uncle initially only described as "enigmatic" now turns out to be a vampire? Guess the name Stoker did imply Bram Stoker's Dracula after all?!
Update (Mar 8): Wentworth Miller has denied in earlier interview at Comic-con that it's a tale of vampires:
“It’s not easy to describe. It’s a horror film, a family drama and a psychological thriller, all wrapped up in one. The jumping off point is actually Hitchcock’s Shadow of a Doubt. So, that’s where we begin, and then we take it in a very, very different direction.”
and (Mar. 10): "It's got a lot of elements of the Dracula mythology in its story... It's not a vampire story. It's not about vampires at least with the teeth and the desire to suck your blood but it is a thriller and it is about an individual who preys on the innocent."

Based on a screenplay by Wentworth Miller (pen-name Ted Foulke)
To be directed by Park Chan-Wook.

“Stoker” is described as a fantastical, fairy-tale like family drama that follows the story of an eccentric teen, India (Wasikowska), whose enigmatic and estranged uncle returns to the family after the death of the girl’s father. People, however, start to go missing in her hometown at the same time and she soon discovers that her uncle may be the cause. Kidman would play India’s mother, and Firth would take on the part of the uncle.

Filming is planned for this spring.
(Colin Firth is still committed to 'Gambit' with Cameron Diaz which would likely shoot after Stoker.)

Source: Playlist, LATimes

Guessing that the rumour mill has jumped the gun?
Waiting to hear full details of film from credible source...