Actor Joaquin Phoenix has denied reports saying he had a breakdown while filming a new movie about Johnny Cash.
Phoenix [L] plays Cash in Walking the Line
Tabloid reports said Phoenix, who plays the late country star in Walk the Line, became upset while filming a scene about the death of Cash's brother Jack.
Phoenix also lost his brother, River, who died in 1993 at the age of 23.
The Gladiator actor also told Newsweek magazine the suggestion he drew on his own experiences for the scene "kind of makes me sick".
Phoenix said he was simply acting, not having a breakdown.
"I don't need to pull from my experience for a character, and I've never understood why actors would, except for lack of ability, imagination or research," he said.
"I had all three things, so this is a little frustrating to me, because it denies my work and the research that I did."
'Makes me sick'
He added: "It bothers me that this happens, because it's slightly exploitative.
"Suggesting that I would use this personal part of my life for a movie... it kind of makes me sick."
The 30-year-old, who starred in The Village and Gladiator, said he resented the media imposing the image of "mourning brother" on him since his brother's death from an overdose in 1993.
Phoenix recently admitted himself to a rehabilitation clinic for treatment for alcohol abuse.