The film reportedly revolves around an aspiring singer (Knightley) who moves to New York with her boyfriend and fellow aspiring musician (Levine) so they can both pursue their music careers. Levine's character breaks up with Knightley soon after their arrival to pursue a solo recording contract, leaving Knightley on her own to be discovered by a "down-on-his-luck" record producer (Ruffalo) while singing at a local bar. T
Cee Lo will play a character named "Troublegum," described as "a very successful hip hop star."
The film will be directed by John Carney (Once) and executive-produced by Judd Apatow.
Principal photography is set to begin next week in NYC.