Experimental film or avant-garde cinema is a mode of filmmaking that rigorously re-evaluates cinematic conventions and explores non-narrative forms or alternatives to traditional narratives or methods of working. Many experimental films, particularly early ones, relate to arts in other disciplines: painting, dance, literature and poetry, or arise from research and development of new technical resources. While some experimental films have been distributed through mainstream channels or even made within commercial studios, the vast majority have been produced on very low budgets with a minimal crew or a single person and are either self-financed or supported through small grants. Experimental filmmakers generally begin as amateurs, and some use experimental films as a springboard into commercial film-making or transition into academic positions. The aim of experimental filmmaking may be to render the personal vision of an artist, or to promote interest in new technology rather than to entertain or to generate revenue, as is the case with commercial films. Definition The term experimental film describes a range of filmmaking styles that frequently differ from, and are often opposed to, the practices of mainstream commercial and documentary filmmaking. Avant-garde is also used, for the films of the sort shot in the twenties in France, Germany or Russia, to describe this work, and "underground" was used in the sixties, though it has also had other connotations. Today the term "experimental cinema" prevails, because it's possible to make experimental films without the presence of any avant-garde movement in the cultural field. While "experimental" covers a wide range of practice, an experimental film is often characterized by the absence of linear narrative, the use of various abstracting techniques—out-of-focus, painting or scratching on film, rapid editing—the use of asynchronous (non-diegetic) sound or even the absence of any sound track. The goal is often to place the viewer in a more active and more thoughtful relationship to the film. At least through the 1960s, and to some extent after, many experimental films took an oppositional stance toward mainstream culture. Most experimental films are made on very low budgets, self-financed or financed through small grants, with a minimal crew or, often a crew of only one person, the filmmaker. Some critics have argued that much experimental film is no longer in fact "experimental" but has in fact become a mainstream film genre. Many of its more typical features—such as a non-narrative, impressionistic, or poetic approaches to the film's construction—define