Update: Sources at Deadline report that a heart attack was the likely cause of death of 58-year-old filmmaker Jean-Marc Vallée, likely on December 25 before being found the following morning.

Earlier: Jean-Marc Vallée, the Canadian director and producer who helmed the films “Wild” and “Dallas Buyers Club” and HBO series “Sharp Objects” and “Big Little Lies,” has died December 25 at age 58. The cause of death is not yet known, though representatives revealed that Vallée died in his cabin outside Quebec City.

His producing partner, Nathan Ross, released a statement regarding his death. “Jean-Marc stood for creativity, authenticity and trying things differently. He was a true artist and a generous, loving guy. Everyone who worked with him couldn’t help but see the talent and vision he possessed. He was a friend, creative partner and an older brother to me. The maestro will sorely be missed but it comforts knowing his beautiful...