Film critics, often referred to as raters, are individuals who watch films and provide their opinion on the quality of the film. They may be employed by a publication or website, or they may be freelance. Film critics are expected to have an in-depth knowledge of film history and theory, and they must be able to articulate their opinions in a clear and concise manner. Their reviews can influence the success of a film, and they are often consulted by filmmakers when making decisions about casting, editing, and other aspects of production.