Joaquin Phoenix’s Weight Loss for ‘Joker’br Caused Him to Develop a ‘Disorder’.br In a recent interview with The Associated Press,br Joaquin Phoenix opened up about his preparationbr for ‘Joker’ and the toll it took on his body. .br The 44-year-old actor was reportedly urged by the movie'sbr director, Todd Phillips, to lose 52 pounds for his role.br Although he lost the weight safely underbr a doctor’s guidance, the drastic processbr caused him to develop an eating “disorder.”.br Once you reach the target weight, everythingbr changes … Like so much of what’s difficult isbr waking up every day and being obsessed overbr like 0.3 pounds. Right? And you really developbr like a disorder. I mean, it’s wild, Joaquin Phoenix, to The Associated Press.br Phoenix previously spoke about the effectsbr of his weight loss in August, saying the processbr negatively impacted his mental health.