After all those years of activity here, the former owners of Washington Dossier magazine, Warren and Sonia Adler, are moving to California for the next several months and possibly much longer. Warren Adler, the author of 14 novels, has rented a beach house in Santa Monica, where he plans to get into the movie business -- producing his own work.

Three of his recent novels, he says, are hot properties: "The War of the Roses" has been optioned by 20th Century Fox; "Random Hearts" has signed Dustin Hoffman to star; and "Twilight Child" has been optioned for a television movie. The move also means that Sonia Adler will not be controlling the editorial content of Dossier, purchased in March by Ron Haan, the owner of Telic Corp., a computer software company. Sonia Adler had been Dossier's executive editor since the magazine was founded 11 years ago, but was edged out of power when a Swedish publishing family bought 50 percent of the publication in 1984. After Haan bought Dossier, it was announced that Sonia Adler would help redirect the magazine's emphasis on social coverage. The magazine is in the market for an executive editor.

Adler said yesterday that he and his wife will maintain their Chevy Chase home. "She's [Sonia] put this guy [the new Dossier owner] on the right road," Adler said, "and she will come into town from time to time to help him over the next few months." The Adlers have a son, Michael, 26, who is an actor living in California. Adler said, "I've made all my other sons rich, now it's his turn." End Notes

Marvin Bush, the 29-year-old son of Vice President George Bush and Barbara Bush, is expected to be released soon from Georgetown University Hospital, where he is recovering from surgery. A financial consultant for Shearson Lehman/American Express, Bush was operated on May 8 for colitis . . .

It's celebrity time for the annual Wolf Trap and Ford's Theatre galas. The featured performers at Wolf Trap on May 28 will be Liza Minnelli and Henry Mancini. Others expected for the black-tie dinner on the lawn of the Filene Center are singer Carly Simon, actresses Margot Kidder, Mariel Hemingway, Lynda Carter and Karen Akers; actors Stacy Keach and Ben Vereen; opera singer Beverly Sills; choreographer Robert Joffrey; and entertainer Peter Allen, a former Minnelli husband . . . The Ford's gala is on June 8 at the theater with cohosts Richard Chamberlain and Jaclyn Smith. The stars lined up for that evening include singer Paul Anka, opera diva Kathleen Battle, humorist Victor Borge, Broadway entertainers Sandy Duncan, Tommy Tune and Joel Grey, ballet dancer Fernando Bujones, cellist Lynn Harrell and country singer Sylvia . . .

While making the new box office hit movie "Top Gun," actor Tom Cruise was saved from drowning during one scene by Navy swim instructors. While filming off the shores of Point Loma in San Diego last July, Cruise was pulling in a mannequin with a waterlogged parachute when a heavy current tangled the chute's lines on the actor's watch and arm and pulled him under. Petty officers Darryl Silva and John Butler rescued Cruise, who was under about 40 seconds and was limp when they pulled him onto a raft. The actor was back at work an hour later. Silva and Butler, who had helped train Cruise and other actors for the film's rescue at sea scenes, were given Navy Commendation Medals for their lifesaving efforts . . .

If you're going to become a U.S. citizen, Independence Day is a good time. And it's an even better time this year -- during Liberty Weekend festivities at Ellis Island for the official unveiling of the renovated Statue of Liberty. That's what superstar dancer/director of American Ballet Theatre Mikhail Baryshnikov has in mind. Baryshnikov, who defected from the Soviet Union in 1974 while touring with the Kirov Ballet, will take the oath of allegiance along with 500 other people on July 3. He is then scheduled to dance to a program of George Gershwin music . . .