Leo Goes Green "Catch Me if You Can" star and movie heartthrob Leonardo DiCaprio has happily teamed up with National Geographic Kids magazine. He served as a guest editor for the April "Save the Earth" issue, which encourages young readers to "think green" and take a "Habitat Hero" pledge. DiCaprio reportedly drives a hybrid car because of his concerns about global warming. "Someone once said that we didn't inherit the Earth from our ancestors -- we're borrowing it from future generations," DiCaprio told Editor in Chief Melina Bellows. "When we all work together, even the smallest actions to protect the planet can turn into something huge."

Where the Beef Is Lulu Auger, owner of Blackie's restaurant with husband Ulysses, has been serving Washington's steak-and-potatoes crowd for more than 50 years, and now she's decided to dish up a tell-all book on the side. "My Life With Blackie the Greek: An Enduring Washington Love Story" chronicles Auger's rags-to-riches life from Minnesota to the nation's capital. And that journey isn't yet done, as Auger explains: "The dreams of destiny that had pursued me in childhood and beyond have been fulfilled. But only in part, for I still feel there is more to come."

Litigious Rosie Rosie O'Donnell could be making her way back into the courts. After demanding a retraction from the National Enquirer, which reported that O'Donnell and live-in-partner Kelli Carpenter were splitting, the former daytime talk show host may still sue for defamation, among other claims. "It's all a pack of lies and the National Enquirer was told it was a pack of lies," says O'Donnell's lawyer Bert Fields.

Noted . . . Actress Liv Tyler is taking the title of one of her recent movies, "The Lord of the Rings: The Fellowship of the Ring," rather seriously. After a year-long engagement, the daughter of former Playboy model Bebe Buell and Aerosmith frontman Steven Tyler walked down the aisle with Royston Langdon. The couple recently announced that they had wed in a private ceremony in the Caribbean last month . . . Tyler isn't the only one taking the marital route. "A Beautiful Mind" star Russell Crowe will wed actress, singer and fellow Aussie Danielle Spencer on Monday in a chapel at his Australian ranch. The nuptials will be part of a double celebration for Crowe: He turns 39 that day.

And Quoted "I will be there for him for the rest of his life, always there." -- Nicole Kidman, speaking of ex-husband Tom Cruise in an interview with People magazine.

-- Complied by Anne Schroeder

from wire and staff reports

Leonardo DiCaprio wants National Geographic Kids readers to help save the Earth.Rosie O'Donnell is threatening to sue the National Enquirer for defamation.