A social problem film is a narrative film that integrates a larger social conflict into the individual conflict between its characters. Like many film genres, the exact definition is often in the eye of the beholder, but Hollywood did produce and market a number of topical films in the 1930s and by the 1940s, the term "social problem" or "message" film was conventional in its usage among the film industry and the public. Many characteristics that have grown to define the social problem film revolve around the perceived consciousness of the nation about a certain social issue and integrating that issue into a narrative structure. Social problems such as the horrors of war, suffering of the poor, addiction, the rights of women, and the inhumanity of a certain world are often put on display. The problem with defining this type of film as a genre lies within the ability it has to separate itself from films that display similar style, as a lot of films do address social issues. However, the social problem film differentiates itself by focusing on the problems within the historical context of the current time, dealing with the social issue of a certain era as it applies to that era with a style that is much more didactic than its contemporaries. Furthermore, the social problem film allows further immersion into a certain issue than other genre films. For instance, gangster and prison films will reflect certain features of a social issue but won't actually fully explore the problem in the way that would qualify it for this genre.
An important facet of the social problem film is its ability to react and display a social problem that is relevant to the current era it was produced in. It specifically addresses an issue while the issue is still part of the national consciousness, often forming an argument for what the problem actually is through the narrative and character development. Early social problem films often blended ideological feelings of the time into a narrative which translated it into a message for audiences to absorb. This can be evidenced within certain sociological experiments that occurred revolving around the ability for a film to change public perception. A prime example of this is the representation of anti-semitism within the film Gentleman's Agreement and the subsequent sociological study by Russell Middleton that measured perceived anti-semitism before and after seeing the film. Surprisingly the film seemed to positively affect the subjects as the majority of people who participated in the study had markedly less anti-semitic feelings than before they saw the film. Although there are certain factors that need to be considered this study seems to indicate once again the primary didactic nature of the Social Problem Film as well as the tackling of subject matter relevant to the current era of the film and how audiences of the historical period perceived such a message.