In "Caddyshack," the big dinner at the club is held to celebrate the Fourth of July, or Independence Day.
The holiday setting explains the scene’s formal dinner, dancing, decorations, and patriotic atmosphere. The gathering takes place at the Bushwood Country Club, where the film’s wealthy members celebrate while the movie’s competing storylines continue around them. The event also provides the backdrop for the climactic confrontation involving Carl Spackler and the gopher.
A common mix-up is to identify the occasion as a general club banquet or a celebration connected to the golf tournament. It is specifically a Fourth of July celebration. The dinner-and-dancing sequence was filmed at the Boca Raton Hotel and Club in Florida, even though the fictional Bushwood club is located in the film’s unnamed Midwestern setting.
Released in 1980, "Caddyshack" became a landmark ensemble sports comedy featuring Chevy Chase, Rodney Dangerfield, Bill Murray, and Ted Knight.