Abstract: JeanFranois Lyotard's film philosophy stems from histheory of“libidinal economy” expounded in the 1970s. He presents the basic characteristics of the film as libidinal device by analyzing the representative space of theater and the division and the function of triple space. Back to the moving nature of cinema, Lyotard puts forward two types of film forms against the libidinal device: immobility and agitation in the experimental films and underground films.For feature films and historical essay films, excessive accumulation of the representations of reality will lead to the so called “metamorphose of seduction”. In Italian neorealism films, those shots of ordinary items such as pan that describe everyday experience will break through the authority of libidinal device and express the sovereignty of film oriented toward future.
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Key words:  Lyotard, film philosophy, libidinal dispositif, acinéma, sovereign film