• Meth-od acting: Tatum O'Neal, an Oscar-winning actress and ex-wife of tennis champ John McEnroe, was busted last night in Manhattan trying to buy cocaine and crack. O'Neal, who has a long history with addiction, reportedly told arresting cops she was "researching a part."

• In passing: Legendary fashion designer Yves Saint Laurent has died in Paris. He was 71. French president Nicolas Sarkozy paid tribute to the man, saying he was "the first to elevate haute couture to the rank of art."

• Open wide: Sex and the City beat out Indiana Jones and won the weekend box-office tally, with an estimated $55.7 million opening. That's the best opening ever for an R-rated comedy. Wait?! It was supposed to be funny?

SURE, THERE'S MORE: Olbermann and the taxman; Audrina and Justin Bobby; Obama leaves his church; and La Hillary Loca!

• Tax crunch: New York state has reportedly issued a tax warrant against Keith Olbermann for $2,269.50 owed in back taxes.

• Sex in the other city: TMZ spies supposedly heard Hills girl Audrina Patridge over the weekend saying she is now "exclusive" (finally!!!) with Justin Bobby and thinking about living with him in total sin. Also they say Lauren's not taking it well. Surprise, surprise.

• Barack breaks: Over the weekend, Barack Obama quit the church that has brought him so much trouble of late. He did it "with sadness," though, and not with "great joy," like you might have expected.

• La Vida Hillary: The Ricky Martin endorsement paid off. Hillary Clinton won about two-thirds of the vote in Sunday's Puerto Rico primaries, contributing to her delusions.

• Future flames: A fire swept through Universal Studios Sunday, destroying a a King Kong exhibit and a set from Back to the Future.

• In treatment: Senator Edward Kennedy will undergo surgery for his brain tumor this morning at Duke University Medical Center.