Forgotten 20th Century Fox starlet Geneviève Waïte and forgotten "trendy" director Michael Sarne teamed for the eminently forgettable Joanna. Waïte stars as the title character, a swinging London art student who uses up men like other people use Kleenex. Her carefree lifestyle comes to an end when she is impregnated by Gordon (Calvin Lockhart) -- one of the first black-white relationships in a major motion picture (if you can call this "major"). For reasons unknown, Joanna frequently becomes a musical, notably in the final sequence, in which the heroine joins in a chorus with the entire cast and production crew. Only Donald Sutherland, as one of Joanna's wealthy amours, emerges from this farrago without egg on his face. Director Michael Sarne went from Joanna to Myra Breckinridge, then disappeared from view.
~ Hal Erickson, All Movie Guide