[UPDATE] Joaquin Phoenix Attached To Untitled Spike Jonze / Charlie Kaufman,

[UPDATE: Another high level source is confirming Joaquin Phoenix's attachment to the project, while also raising questions about the current role/involvement of Warner Bros and Kaufman. More information coming as we receive it.]

Back in March Deadline broke news about a new, untitled project doing the rounds from director Spike Jonze and writer Charlie Kaufman. At the time all that was known about the latest project from the duo behind Being John Malkovich and Adaptation was that it was a political satire and that Megan Ellison's Annapurna Productions was coming on to back the project. Deadline described the story as "a satire about how world leaders gather to figure out all the seismic events that will take place in the worlds, from oil prices to wars that will be waged."

Things have been quiet since but ScreenAnarchy has learned that Warner Brothers have now also come on board. Plot details remain sketchy but Joaquin Phoenix is attached to star and Vincent Landay to produce with a March 2012 start date eyed for production.