Cameron Douglas

Michael Douglas' son was sentenced to five years in prison Tuesday on drug charges, according to The Associated Press.

U.S. District Judge Richard M. Berman announced Cameron Douglas' sentence after the 31-year-old apologized with his father in attendance. Douglas pleaded guilty to dealing large amounts of methamphetamine and cocaine, as well as heroin possession, in January.

Cameron Douglas pleads guilty to drug dealing

A charge of conspiracy to distribute drugs carries a minimum of 10 years in jail, but the judge said the government believed Douglas qualified for a shorter sentence, the AP reported. Berman said he had read at least 37 letters from Douglas' family, friends and supporters who believed he was ready to turn his life around.

But Berman also expressed his doubts about a turnaround. "In my estimation, that will be a very difficult chore," he said. "I think this case and this sentencing may well be his last chance to make it."

Michael Douglas' son arrested on meth-dealing charge

The case dates back to Douglas' July 28, 2009, arrest at a trendy New York hotel as part of a Drug Enforcement Administration investigation. Investigators say Cameron was paid tens of thousands of dollars for trafficking meth, according to court papers obtained by the AP.

Douglas was previously arrested in 2007 on cocaine possession charges. He starred alongside his Oscar-winning father and grandfather, Kirk Douglas, in the 2003 film It Runs in the Family.