In this April 27, 2009 file photo, Cameron Douglas, son of Michael Douglas, arrives at the premiere of the film "Ghosts of Girlfriends Past" in Los Angeles. Michael Douglas has asked a federal judge in a handwritten letter to show leniency toward Cameron Douglas at a sentencing set for Tuesday, April 20, 2010. (AP Photo/Chris Pizzello, File)
October 20, 2011 10:42:14 AM PDT
NEW YORK - October 20, 2011 --
Michael Douglas' imprisoned son has pleaded guilty to a new drug charge.