- Jeanne did her own nude scenes in the Basic Instinct but used a body double for her nude scenes in the film Waterworld.
- Jeanne has one younger brother.
- In 2006 Jeanne received a Satellite Award nomination in the category Best Actress in a Series, Drama for her role on Big Love.
- Jeanne was originally cast as Carrie in the film Four Weddings and a Funeral but had to drop out due to scheduling conflicts. The part later went to actress Andie McDowell.
- Jeanne is 5' 7" tall.
- When Jeanne was a DJ in Tulsa, she went by the name of Jeanne Summers.
- Jeanne played the part of Masha in the Broadway revival of the play Three Sisters. She costarred in the play with actresses Amy Irving and Lili Taylor.
- Jeanne graduated from Edison High School in 1981.
- Jeanne was originally cast as Mia Wallace in Quentin Tarantino's Pulp Fiction but had to turn down the role. The part later went to actress Uma Thurman.
- Jeanne: (On working with actresses Chloë Sevigny and Ginnifer Goodwin in Big Love) It's really been dreamy. We are vastly different people and it just comes together like a puzzle, just beautifully. The three of us acting was truly one of the best experiences I've ever had. I really look forward to the days when all three of us shoot together, because the sparks really fly.
