Joni Mitchell teams up with Cameron Crowe to script her biopic

Legendary folk star is reportedly offering input into screenplay for drama film about her life

Cameron Crowe, the director of Almost Famous and Jerry Maguire, is developing a new drama film with Joni Mitchell about her life.

According to a story on the entertainment site Above the Line - which was subsequently reposted on Mitchell's own website - the project is not a documentary and Mitchell has been collaborating with Crowe on the script for the past two years.