"St. Elmo's Fire" is a coming-of-age drama that explores the lives of a group of recent college graduates navigating the complexities of adulthood in the early 1980s. The film addresses themes of friendship, love, ambition, and the struggles of transitioning from the carefree college years to the responsibilities of adult life. Each character grapples with personal challenges, such as career aspirations, relationships, and identity, ultimately highlighting the importance of support and connection among friends as they face the uncertainties of their futures.

Demi Moore was born on November 11, 1962. "St. Elmo's Fire" was released on June 28, 1985. This means she was 22 years old at the time of the film's release. The film features a group of recent college graduates navigating their new adult lives, and Moore plays the character Jules.

In "St. Elmo's Fire," Rob Lowe's character, Billy, is depicted as a talented saxophonist. However, the saxophone solos in the film were not performed by Lowe himself; they were played by professional saxophonist David Sanborn. While Lowe did take saxophone lessons to prepare for the role and performed some of the simpler parts, the more complex music was recorded by Sanborn, whose work contributed significantly to the film's memorable soundtrack.

In "St. Elmo's Fire," Demi Moore plays the character Jules, who struggles with substance abuse issues. Her character grapples with addiction, particularly to drugs and alcohol, which creates significant challenges in her relationships and personal life. The film explores the lives of a group of friends navigating the transition from college to adulthood, with Jules' struggles serving as a poignant subplot that highlights the impact of addiction on young adults.