what is the storyline?
In 1991 Los Angeles, Jeffrey "The Dude" Lebowski, a middle-aged bachelor with a penchant for cannabis and bowling, is assaulted by two goons hired by pornographer Jackie Treehorn, demanding money owed by the wife of another Jeffrey Lebowski (the eponymous "Big Lebowski"). One urinates on the Dude's rug. Eventually, realizing they have the wrong man, they leave.
The Big Lebowski
In 1991 Los Angeles, Jeffrey "The Dude" Lebowski, a middle-aged bachelor with a penchant for cannabis and bowling, is assaulted by two goons hired by pornographer Jackie Treehorn, demanding money owed by the wife of another Jeffrey Lebowski (the eponymous "Big Lebowski"). One urinates on the Dude's rug. Eventually, realizing they have the wrong man, they leave.

what kind of bowling ball does the dude use UNANSWERABLE what is "the big lebowski"? It is a crime comedy film
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The Big Lebowski [SEP] Plot
Days later, the Dude is told that Bunny has been kidnapped, and Lebowski wants the Dude to deliver the ransom money to find out if the kidnappers are the same people who soiled his rug. The Dude informs Walter and Donny about the kidnapping and suggests that Bunny "may" have staged her own kidnapping to use the ransom money to pay off her debts; Walter is immediately convinced of this and becomes incredulous at her greed. That night, another pair of thugs knock the Dude unconscious and take his new rug.