A Southerner, Harling moved to New York to pursue a theatrical career after first obtaining a law degree. He landed work in regional theater and as a voice-over artist for radio and TV commercials before turning to writing. When his sister Susan died of complications from diabetes, he was inspired to write his first play, "Steel Magnolias". The effort impressed Kyle Renick at the off-off-Broadway WPA Theater enough to produce it where it received strong notices and transferred to a healthy off-Broadway run. Producer Ray Stark purchased the screen rights and Harling set about adapting the