AceShowbiz - Michael Douglas' actor son Cameron has been sentenced to five years in prison on drug charges. The 31 year old faced a mandatory minimum sentence of 10 years behind bars after he was arrested in August 2009 following a drugs raid on his room at a New York City hotel.

He pleaded guilty to one count of methamphetamine possession with intent to distribute a controlled substance and one count of possession of heroin in January. Reports suggest the "It Runs In the Family" star had been plotting to move approximately $18,000-worth of crystal meth from California to New York to sell when an undercover informant alerted the U.S. Drug Enforcement Administration.

In a letter urging the judge in the case to be lenient when sentencing his son, Michael Douglas called Cameron "a loving man" and "a thoughtful friend". Cameron's stepmother Catherine Zeta-Jones and grandfather Kirk Douglas also penned letters to Manhattan's Federal Court in New York in the hope of seeking a reduced sentence.

Michael Douglas' letter was originally kept private, but a judge last week ruled that it should be made public. In the heartfelt message, the proud father opened up about his son's troubles, insisting Cameron is now "sober" after a stint in rehab and has become a "wonderful young man".

Cameron Douglas has been detained at the Metropolitan Correctional Center in New York for the past eight months.