Strauss's popular operetta updated to a post-war Vienna, misruled by the four occupying powers - USA, URSS, France and Britain - whose pleasure-seeking representatives are easy prey for Dr. Falke, “the Bat”. Using the still-new Cinemascope process, Vienna was designed by Heckroth as a chocolate-box confection amid the drabness of post-war Europe.
(...) The Archers again tackled an established popular classic, Strauss's Der Fledermaus, rechristened Oh... Rosalinda!! and updated to the contemporary Vienna (...). This is The Archer's first use of the new Cinemascope process (...). Long regarded as a failure even by its makers, Oh... Rosalinda!! now looks like another isolated protype for a British cinema of ironic parody and stylistic bricolage. It combines some of Heckroth's most outrageous invention in studio décor with a determinedly realist approach to the operetta form: many of the non-musical actors sing with their own voices and professional dancers are mixed with the non-professionals in a remarkable cast that included Michael Redgrave, Mel Ferrer, Anthony Quayle, Ludmilla Tcherina and Dennis Price.
Ian Christie (Michael Powell & Emeric Pressburger: Arrows of Desire)