That film was released by Gérard Corbiau ("Le Maitre de Musique" and "Farinelli" for which he received his second Oscar nomination for best Foreign Film in 1995) in 2001. It is possible to buy it on DVD (only in French) or on VHS (French, German and maybe some other languages). The playtime of the film is 112 minutes + 40 minutes of Bonusmaterials on DVD
The film is more about Lully and music at the court of Louis XIV than about Louis XIV himself. A little bit strange film by Gérard Corbiau.
Anne of Austira
Louis XIV young
Mme de Montespan