Actress Tatum O'Neal, age 44, was busted on Sunday on the Lower East Side, trying to buy crack and cocaine.
"When the police approached, she asked them, 'You know who I am, right?' " one source said.
"Then she said, 'I'm researching a part - I'm doing this for a part as a junkie.' "
The source said detectives found a pipe on O'Neal, daughter of actor Ryan O'Neal. The pipe and screen were clean.
"Then she said she'd been clean for two years, and that she'd just came out today,"...