The movie was inspired by writer and co-star Brian Doyle-Murray’s memories working as a caddy at Illinois. Many of the characters in the film are based on characters that he encountered through various experiences at the club.
The film was shot over 11 weeks during the autumn of 1979. However, despite being one of the main starts in the movie, Bill Murray was with the production only six days! And all of his lines were unscripted. Bill Murray’s talent and improvisation surely helped him achieve the creation of one of the best comedy movies of all times!
