Colin Farrell's baby son is helping him cope with rehab, friends have claimed.The Irish hellraiser is battling a drug and booze addiction at a Los Angeles treatment centre - but is reportedly winning his fight thanks to two-year-old James.A source is quoted in Britain's Daily Star newspaper as saying: "He's been a different man since he saw James at Christmas."He means the whole world to Colin and is the best possible therapy he could get."The troubled actor checked into rehab last December.His publicist, Danica Smith, said at the time: "Colin Farrell has checked himself into a treatment centre for exhaustion and a dependency to prescription medication which was prescribed to him for a back injury."The wild star is known for his love of women and partying.

Two years ago he confessed to a magazine that he had even smoked heroin.

He admitted: "For some reason, it seemed pretty f*****g nice at the time. There was nothing I wouldn't have f*****g done. Whatever was around'."

Tagged in