Structural film was an avant-garde experimental film movement prominent in the United States in the 1960s. A related movement developed in the United Kingdom in the 1970s.

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.