Griffin O’Neal, son of Hollywood legend Ryan O'Neal, has pleaded not guilty to drug and firearm possession and driving under the influence after a head-on traffic collision that injured a motorist.

Los Angeles prosecutors were considering today whether to charge Ryan O’Neal with assault with a deadly weapon for firing a gun during a fight with his son at the actor’s Malibu home.

Stars of the 1970s, Farrah Fawett and Ryan O'Neal, cried in court recently when they heard their troubled son admit he is still addicted to heroin.