French actress Julie Depardieu has opened up about the private rules that have sustained her 15-year relationship with singer and performer Philippe Katerine. During a recent appearance on the television program "Quelle époque!" hosted by Léa Salamé on September 27, 2025, Depardieu revealed the couple's deliberate separation between their professional and personal lives. The actress, who has starred in France 3's police series "Alexandra Ehle" for many years, explained that maintaining this boundary has been crucial to their relationship's longevity.

Depardieu was surprisingly candid about her initial reservations when she first met Katerine. "I told him when we met: 'Be careful, I don't know if you know where you're putting your feet.' I didn't encourage him," the actress revealed during the interview. This cautious beginning has evolved into a stable partnership that now spans over a decade and a half, surprising even Depardieu herself, who described being "resolutely like everyone else, a bit annoying... and yet he's still there!"

The couple has established strict guidelines to preserve their family equilibrium, with Depardieu emphasizing their firm stance against professional collaboration. "We don't do anything together. We share the essential parts of our life. Professionally, it's each on their own side, otherwise it's a lot of troubles," she explained without hesitation. This principle stems from their understanding of the potential tensions that can arise when romantic partners work together professionally.

Their family organization includes another fundamental rule: one parent must always remain present when the other is working on a film set or performing. This arrangement makes professional collaboration between them mechanically impossible but ensures constant parental presence for their two sons, Billy and Alfred. The family divides their time between Paris and their home in Bougival, where they maintain what Depardieu describes as a "hyper normal" daily life despite their artistic careers.