In 2005, Michelle Williams gave birth to the couple's two-year-old Matilda Rose.

In an interview for the movie I'm Not There, in reference to his daughter Heath told a reporter, "You also look at death differently... it's like a catch-22. Like I feel good about dying now because I feel like I'm alive in her, but at the same hand you don't want to die because you want to be around for the rest of her life."

Heath, who seemed to love his role as dad, told the Boston Globe, "I get [Michelle] granola and cook her an egg, I clean the dishes, and then I'm cooking lunch. Later I go out to the market and get fresh produce for dinner. And I love it! I love my new job!"

Heath and Michelle split up in 2007.