The Philosophy of the Absurd in The Big Lebowski
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This article asserts that The Big Lebowski is in fact a modern adaptation of Albert Camus' The Stranger and an illustration of the philosophy of Absurdism, which one might consider type of nihilism-a reference which is frequently alluded to within the film itself.
"The act of bowling is an adapted symbol" - http://literaryculturaltheory.blogspot.com/2008/02/philosophy-of-absurd-in-big-lebowski.html (http://literaryculturaltheory.blogspot.com/2008/02/philosophy-of-absurd-in-big-lebowski.html)
(http://dvdmedia.ign.com/dvd/image/article/660/660299/the-big-lebowski-the-collectors-edition-20051020064922419-000.jpg)
Very interesting theory, haven't read the book in question but I think he may have the wrong dvd in the case, the Dude a nihilist?