The Decline of Western Civilization is an American documentary film filmed through 1979 and 1980. The movie was directed by Penelope Spheeris about the Los Angeles punk rock scene. In 1981, the LAPD Chief of Police Daryl Gates wrote a letter demanding the film not be shown again in L.A. Over the years the film has gained cult status.
The film's title is possibly a reference to famous music critic Lester Bangs' 1970 two-part review of The Stooges' Fun House for Creem Magazine, where Bang quotes a friend who had said the popularity of The Stooges signaled "the decline of Western civilization." Another possibility is that the title refers to Darby Crash' reading of Oswald Spengler's "Der Untergang des Abendlandes" ("The Decline of the West").
The film is the opening act of a trilogy by Spheeris depicting life in Los Angeles at various points in time. The second film covers the Los Angeles heavy metal scene of 1986-1988. The third film chronicles the gutter punk lifestyle of homeless teenagers in the late 1990s.