where was dead poets society filmed

The film Dead Poets Society was primarily shot in Delaware, USA. Key filming locations include St. Andrew's School in Middletown, Delaware, which stood in for the fictional Welton Academy. Other important locations were the Everett Theatre in Middletown, New Castle, Westover Hills, and areas around Rockland in Delaware. The cave scene was filmed near Beaver Valley Cave in Wilmington, Delaware, although the interior shots were done in a warehouse in New Castle. These locations provided the setting for the movie's school, town, and iconic scenes.