The woman's film is a film genre which includes women-centered narratives, female protagonists and is designed to appeal to a female audience. Woman's films usually portray stereotypical women's concerns such as domestic life, family, motherhood, self-sacrifice, and romance. These films were produced from the silent era through the 1950s and early 1960s, but were most popular in the 1930s and 1940s, reaching their zenith during World War II. Although Hollywood continued to make films characterized by some of the elements of the traditional woman's film in the second half of the 20th century, the term itself disappeared in the 1960s. The work of directors George Cukor, Douglas Sirk, Max Ophüls, and Josef von Sternberg has been associated with the woman's film genre. Joan Crawford, Bette Davis, and Barbara Stanwyck were some of the genre's most prolific stars. The beginnings of the genre can be traced back to D. W. Griffith's silent films. Film historians and critics defined the genre and canon in retrospect. Before the woman's film became an established genre in the 1980s, many of the classic woman's films were referred to as melodramas. Woman's films are films that were made for women by predominantly male screenwriters and directors whereas women's cinema encompasses films that have been made by women. When the woman's film was still at a nascent stage, it was not regarded as a fully independent genre. Mary Ann Doane, for example, argued that the woman's film is not a "pure genre" because it is crossed and informed by a number of other genres such as melodrama, film noir, the gothic, and horror film. Similarly, film scholar Scott Simmon argues that the woman's film has remained "elusive" to the point of having its very existence questioned. This elusiveness, he argues, is partially due to the fact that the woman's film is an oppositional genre which can only be defined in opposition to male-centered genres like the Western and gangster film.