Joel Coen and Ethan Coen are writing and directing Inside Llewyn Davis, which stars Oscar Isaac. The story is based on the life of folk musician Dave van Ronk, and centers on a folk artist struggling to make it in the 1960s music scene. It isn't known what role Carey Mulligan, or if she will be required to sing.
Charlie Kaufman is writing the Untitled Spike Jonze Project for Spike Jonze to direct. The story centers on a group of world leaders who meet to shape the face of global events. Joaquin Phoenix will also star, although nothing is known about the characters Joaquin Phoenix or Carey Mulligan will play.