Conversation so far:
What is important about Joaquin Phoenix's personal life?
In early April 2005, Phoenix checked into rehab to be treated for alcoholism.
Did he ever do anything stupid while drinking alcohol?
On January 26, 2006, while driving down a winding canyon road in Hollywood, Phoenix ran off the road and rolled his car.
Did he walk away from the accident or did he need help?
While Herzog helped Phoenix out of the wreckage by breaking the back window of the car, bystanders phoned for an ambulance.

Question: What else can you tell me about his personal life?
Self-contained rewrite: What else can you tell me about Joaquin Phoenixs personal life other than the accident?.