Jennifer Jason Leigh has filed for divorce from her husband, Noah Baumbach.

The couple was married in 2005 -- and have one child together -- an infant son.

READ THE COURT DOCUMENTS HERE

Jennifer's legal name is Jennifer Leigh Morrow and she filed for divorce using her legal name.

Jennifer cites irreconcilable differences as the reason for the split and wants physical custody of their son, but would live her estranged hubby to have visitation.