Diane Renee Thomas (January 7, 1946 – October 21, 1985) was a screenwriter. She was working as a waitress while writing scripts and then had the opportunity to pitch the script for Romancing the Stone to customer Michael Douglas who then bought, produced, and starred in the film with Kathleen Turner and Danny DeVito.
She was born January 7, 1946 in Sault Ste. Marie, Michigan. Her family moved to Long Beach, California when she was 12 years old. She attended the University of Southern California and majored in business. Then, according to her obituary, "She worked as an advertising copywriter, wrote travel brochures, took acting classes and worked toward a degree in psychology."
In 1978, while working "every spare hour for a year" on Romancing the Stone, Thomas was a waitress at Coral Beach Cantina on the Pacific Coast Highway.
It took less than a week for her agent, Norman Kurland, to sell the script. Kurland had sent it to several major studios. Actor/producer Michael Douglas and Columbia Pictures bought the script, though the film would later be made by 20th Century Fox.
According to other accounts, the sale of the screenplay was a Cinderella story in itself: Thomas pitched the story directly to Douglas herself, when the actor happened to come into her cafe as a customer. This account, however, is disputed.
"It just had a spontaneity about the writing," Douglas said of the screenplay that would launch Thomas' career. "She was not cautious. The script had a wonderful spirit about it. . . . There was a total lack of fear to the writing. It worked."
The screenplay for Romancing the Stone sold for $250,000. In addition to Thomas, "at least three" uncredited script doctors revised the screenplay.
After Romancing the Stone, Thomas wrote another screenplay titled either Blonde Hurricane or Blond Hurricane.
Diane Thomas died in a car accident in October 1985, only six weeks before the sequel to Romancing the Stone, The Jewel of the Nile, was released. At the time, Thomas was busy writing for the movie Always for Steven Spielberg and was not available to write The Jewel of the Nile.