George Clooney shared that his final moments with his late sister Ada Zeidler reminded the actor to always “seek the joy out” of life. “My sister, who I was very close to, got cancer last year and she died very quickly,” the “Ocean’s Eleven” star said while receiving the Golden Lion for Lifetime Achievement during the 2026 Venice Film Festival last week. “I was with her when she died, and there was this feeling being with her, holding her hand when she died, understanding how brief all this is.” The “ER” alum said that while sitting with her as she was dying, it felt like “minutes ago that she and I were both kids together.” “Minutes ago…