Watch teenage Marianne Faithfull sing "As Tears Go By" a cappella in long-lost film scene
19-year-old Faithfull singing in Godard's legally-suppressed 1966 film, unseen by American audiences for generations

A two-minute clip captures 19-year-old Marianne Faithfull singing "As Tears Go By" a cappella in Jean-Luc Godard's 1966 film Made in U.S.A. — a performance that remained largely unseen by American audiences for decades.
Faithfull, who passed away yester…