Catherine Keener joins The Soloist

As if it didn’t have enough acting credibility already with Jamie Foxx and Robert Downey Jr signed on to the leading roles, DreamWorks’ real life tale of a homeless, schizophrenia-afflicted musical prodigy with big dreams has just scooped Catherine Keener.

The plot follows Nathaniel Ayers (Fox), a musician living rough in Downtown LA who is discovered by newspaper columnist Steve Lopez (Downey Jr). Keener’s playing Lopez’ wife.

Joe Wright – currently riding a wave of kudos for Atonement – will start cranking the cameras this January, based on a script by Erin Brockovich scribe Susannah Grant.