By Mitchell Fink
Updated April 24, 1995 12:00 PM


Actress Jeanne Tripplehorn, who may have had her fill of rough seas during the making of Kevin Costner’s budget-busting new epic Water-world, may be headed into roiled waters again. The problem this time is Tripplehorn’s almost two-year engagement to actor-director Ben Stiller (Reality Bites). Their boat, as it were, may be foundering. A source close to Tripplehorn and Stiller described the couple’s relationship right now as “turbulent and about to come apart.” Their reps failed to return calls seeking comment….

Literary agents for Watergate figure John Dean are circulating a proposal among publishers for Dean to chronicle conservative Pat Buchanan’s campaign for the Republican presidential nomination. Word is Dean wants $2 million for the gig. Said one editor: “He shouldn’t hold his breath.”…

Greg Louganis has a walk-on cameo in director Randal Kleiser’s movie It’s My Party, costarring Eric Roberts, Marlee Matlin and Gregory Harrison. The movie is about an AIDS sufferer who throws a big bash for himself and then gets help committing suicide. Executive producer Gregory Hinton says Louganis’s participation was “serendipitous,” considering he filmed his part a few days before he announced to the world that he has AIDS….

From the My Life After Sharon Stone Department comes word that Stone’s ex-fiancé Bill MacDonald, coproducer of Sliver, has formed a film-production company in partnership with actor Tom Berenger….

Looks like a lot of folks Georgia on their mind. There are currently two TV projects titled Savannah. Producer Aaron Spelling is developing one, a dramatic series for the WB network, about four gorgeous young women who move from Savannah, Ga., to New York City. The other Savannah, in development at CBS, is being written by Zalman King, best known for coproducing 9½ Weeks and Showtime’s Red Shoe Diaries. The project, also a 1-hour drama series, revolves around two Savannah families….

Paramount won’t admit it, but I’m told the studio is very concerned that Mel Gibson’s new movie Braveheart, a historical drama set in 13th-century Scotland, is coming in at 2 hours and 50 minutes. With the film set to open on May 24, all a Paramount rep would say is that the Braveheart print “is not completed yet.”…

Academy Award-winning actor Sir Anthony Hopkins says his preparation to play Richard Nixon in Oliver Stone’s next movie, Nixon, has been especially difficult “because there’s so much reading material on Nixon and I’m such a slow reader.” Hopkins told me that his first scene in the movie will be “a drunk Nixon listening to the Watergate tapes.” Shooting is scheduled to begin in May….

Coming soon to a bookstore near you: Secrets of World Class Lovers: Erotic Tips and Sensual Stories for a Lifetime of Sexual Fulfillment, by Drew Barrymore‘s 48-year-old mother, Jaid, a sometime actress who says she posed nude recently for a pictorial in a forthcoming Playboy….

It’s Growing Pains reunion time on NBC’s new sitcom Hope & Gloria. In an episode about to be filmed, H&G costar Alan Thicke will be visited by his old GP castmates Kirk Cameron, Joanna Kerns and Jeremy Miller. The trio, playing themselves, will be guests taking potshots at Thicke on a TV talk show hosted by Dennis Dupree, Thicke’s H&G character. The episode is scheduled to air mid-May, during sweeps….

And finally, wondering why you haven’t heard much about the weekend-long, 40th-birthday party that Bruce Willis threw at his hideaway near Sun Valley, Idaho, a week ago? Maybe because Willis insisted that locals who were working on the event agree not to talk to the press. I can report, however, that Arnold Schwarzenegger turned out to be an ace bowler when Bruce and his guests took over the Mountain Sun Lanes in nearby Bellevue. Who knew?