Heath Ledger and Michelle Williams have reportedly split.
The couple, who have a 23-month-old daughter Matilda together, battled to save their "rocky" relationship for the sake of their child but decided to part ways for good several weeks ago.
A source told People magazine: "It was rocky for a while. They did what they could to make it work. The split was amicable."
Heath and Michelle began dating after meeting on the set of 'Brokeback Mountain' in 2004. Fellow 'Brokeback Mountain' star Jake Gyllenhaal revealed the pair were instantly attracted to each other. He said: "I remember being in rehearsals, and the two of them made eyes for each other. There were immediate sparks."
Michelle gave birth to Matilda as the couple were promoting 'Brokeback Mountain' and Heath, 28, called her the "perfect mom". However, the former 'Dawson's Creek' actress admitted she struggled to cope with motherhood and her career.
Michelle, 26, said: "We started promoting the movie about three weeks after Matilda was born, which was too soon. I'M just learning lessons now, like learning how to be a working parent."
The pair, who shared a $3.5 million Brooklyn mansion, wore wedding bands during their relationship but refused to confirm if they were married. | 
