Trivia

Michael Douglas, the producer of "Romancing the Stone" gave Diane a Porsche sports vehicle as a gift for her script. Weeks later, she died in that same car when her drunk boyfriend veered off the street.

At the time of her death, she was working on a project called "Blond Hurricane" and had finished a draft of a sequel to Les Aventuriers de l'arche perdue (1981).

Reportedly, she was working in a cafe to support herself while writing scripts. One day a customer came in and she pitched a script idea to him. The customer was Michael Douglas and the pitch was for À la poursuite du diamant vert (1984).

Died shortly after become a professional screenwriter.

Attended UCLA.

Following her untimely death, UCLA created the Diane Thomas Screenwriting Award.