Catherine Keener has signed on to co-star in DreamWorks’ music pic “
The Soloist.”
Jamie Foxx and Robert Downey Jr. have already boarded the project, which “Atonement” helmer Joe Wright will direct starting in January.
Story centers on Nathaniel Ayers, a homeless musician with schizophrenia who dreams of playing at L.A.’s Disney Hall. The screenplay, by Susannah Grant (“Erin Brockovich”), is based on a 2005 series of articles by Los Angeles Times columnist Steve Lopez.