"I know nothing of the novel from which this film was made, but from the author's name it is reasonable to assume that it is of Scandinavian origin. As a full-blooded drama of frustration and salvation, in the manner of The Atonement of Gösta Berling, it might have been powerful stuff indeed. Muted to the needs of British genteel suffering, (the film) doesn't come off as well.... (A) star-vehicle for Margaret Lockwood (at a time when) British films were dealing more and more with realism than escapism...The White Unicorn is novelettish, but with realistic trimmings; perhaps if there had been a little more of the Joan Greenwood story a better balance would have been struck. Nevertheless, it's a creditable production, especially for an independent film (merely released by Rank). With its colorful plot and cast, it's an enjoyable film, and one almost totally forgotten both here and in England. Incidentally, signs of the Production Code times: both honeymoons, even the more romantic one, feature twin beds!" William K. Everson