1940 Dr. Ehrlich's Magic Bullet True story of the doctor who considered it was not immoral to search for a drug that would cure syphilis. Credits Director William Dieterle Cast Edward G. Robinson , Ruth Gordon , Otto Kruger , Donald Crisp , Maria Ouspenskaya , Montagu Love , Sig Ruman , Donald Meek , Henry O'Neill , Albert Bassermann Studio Warner Bros. Pictures Genre Drama External IMDb Posters 5 US theatrical US international US character US teaser US imax