Vigo is noted for two films that affected the future development of both French and world cinema: "Zero for Conduct" (1933) and "L'Atalante" (1934). "Zero for Conduct" was approvingly described by critic David Thomson in "The New Biographical Dictionary of Film" as "forty-four minutes of sustained, if roughly shot anarchic crescendo." "L'Atalante" was Vigo's only full-length feature. The simple story of a newly married couple splitting and reuniting effortlessly merges unpolished, naturalistic filmmaking with shimmering, dreamlike sequences and effects. Thomson described the result as "not so much a masterpiece as a definition of cinema, and thus a film that stands resolutely apart from the great body of films."