GOOD MORNING: Brad Grey was with his friend Rudy Giuliani, Monday when the mayor appeared onstage at the Hollywood & Highland Kodak theater. And Grey will introduce Giuliani Monday at Lincoln Center when HBO preems “In Memoriam: New York City 9/11/01.” Jeff Bewkes will intro the film, produced by Grey. Exec producer is Brillstein-Grey VP Jonathan Liebman, a former federal prosecutor who introduced Grey to then-Mayor Giuliani. They have become fast friends — and Grey also made the deal (pre-Sept. 11) for Giuliani’s “Leadership” (tentative title) with Talk Miramax Books for $3 million. The film debuts May 26 on HBO. Howcum now and not on the first anniversary, 9-11-02? “We thought it was appropriate — it’s Memorial Day,” said Grey, who allows the film was Rudy’s idea. “He suggested it to me when I was visiting him in his office. We were discussing Pearl Harbor and how the technology wasn’t what it is today to totally capture what happened. I called my pals at HBO — they understood what we wanted to do and they immediately donated $1 million (to its making).” Grey donated his fee and a percentage of the budget to the Tower Fund. And all ensuing funds — from DVDs, video sales, etc., of this film and unused footage uncovered in the making of the film are donated to the Museum of the City of N.Y. It has been in the works seven months. “We had to decide what’s appropriate, and what goes too far — and yet be as realistic as can be so people can realize the horror, the personal suffering… .” I have seen this film and still cannot believe what I saw — that this could happen to my country. While looking at this film, I again experienced the emotions I only once before felt — when I reported for duty on my destroyer minesweeper and viewed what had happened at Pearl Harbor. Don’t miss seeing “In Memoriam: New York City, 9/11/01.” Sheila Nevins produced for HBO and proceeds from the project go to the Twin Towers Fund and other charitable institutions. Most of the services and fees for the film were donated — and that includes the N.Y. Philharmonic’s magnificent musical backing of American composers, conducted by Leonard Slatkin.ACTOR-ACTIVIST MIKE FARRELL was invited to the John F. Kennedy School of Government’s Institute of Public Leadership at Harvard, where he was presented with the Gleitsman Foundation’s Citizen Award — $50,000. Receiving a like award was Mimi Silbert of the Delancey Street Foundation. The award goes to an international activist in odd-numbered years (Nelson Mandela and Wei Jingheng) and to a U.S. activist in even-numbered years. On the showbiz front, Farrell is a producer (along with Gene Reynolds and Burt Metcalfe) of Friday’s “MASH 30th Anniversary Reunion Special” for Fox. All the surviving members gathered for the special, plus Larry Gelbart, who exec produced the series along with Reynolds and Metcalfe. Part of the “MASH” compound was rebuilt on the Fox lot for the special. Farrell’s also celebrating the fact that his “Providence” was picked up by NBC for a fifth season. And he and partner Marvin Minoff are developing a feature for Showtime, “Things Behind the Sun”… And best news for Farrell is the fact wife Shelley Fabares had her first sojourn on her own since liver transplant surgery last year — last weekend she winged to Chicago to host the annual Rita Hayworth Gala for the Alzheimer’s Assn., for which she sits on the board of directors and is a national spokeswoman. Shelley has been active with the Alzheimer’s Assn. since her mother was diagnosed in the early ’90s. The thesp has been traveling the country for them and also has testified before Congress on their behalf six times. This couple is a treasure of the showbiz community. ANOTHER STUDIO’S ON THE DRAWING BOARDS. This one, Utopia Studios, is plotted by actress Cathy Moriarty-Gentile and her financier — husband Joseph Gentile. She tells me they are checking possible locations in Long Island and Las Vegas. And she says the complex would also include a theme park, school for arts, etc. And she wants to produce a children’s program. Moriarty, who has welcomed three children in a year (including twins), is back in front of the cameras for “Analyze That” with Robert De Niro and Billy Crystal for director Harold Ramis. She allows there’s an enormous amount of ad-libbing by the two male leads. “Thank goodness I know how to do it, too!” she laughed … The Western Music Assn.’s Spirit of America Tour kicks off today at Camp Pendleton and continues on to play military sites as a thank-you to service personnel. Former Army officer Robert Rosenthal is financing and producing. The philanthropist produced military films in the early ’60s plus docus and features … Carol Connors sang the national anthem at the U.S. Marine Corps Law Enforcement dinner at N.Y.’s Plaza. This dinner was underwritten by another BevHills philanthropist, Stephen Wallace … Kelly Stone and Bruce Singer will wed Sept. 21 at L.A.’s Park Plaza Hotel … Natalia and Leonard Ross welcomed their first, son Dylan Rey Ross, May 10 … Universal/Motown Records’ senior VP of New Technologies Steve Leeds’ daughter Katie Beth was bat mitzvah’d Saturday … Bob Barker dominates four hours of network airtime Friday: “The Price Is Right,” 10-11 a.m., “The Price Is Right Salute to the U.S. Navy,” 8-9 p.m., and the Daytime Emmys, which he hosts, airs 9-11 p.m. Whatta guy!