 Taking full advantage of the star power, a drama was scripted based on Leo Tolstoy's 1877 novel, "Anna Karenina".The result was a failure for the author's purists, but it provided the public with a taste of Gilbert-Garbo eroticism that would never again be matched.The publicity campaign for the film was one of the largest up to that time, and the title was changed from the original, "Heat".