GOOD MORNING: The cast of 60 included Roman Polanski, Robert De Niro, Oliver Stone, Christopher Lambert, Terry Semel and Rob Friedman, all assembled, said one of ‘em, “like a U.N. of the movie biz.” The 20-minute film was a tribute to Arnon Milchan at his surprise 50th-birthday party at the Hotel Crillon in Paris. The movie was put together by his lady friend, Ase Thastrom. The above group was also on hand live, as were Milchan’s mother, children and sister, who also flew in from around the world for the producer’s party. Semel had winged in from L.A. with stops in Germany, where WB is building a theme park in Dusseldorf, opening a WB store in Berlin and building theaters all over Germany –”a great movie country,” Semel noted.”They love American stuff”… The O.J. frenzy has crossed the Atlantic, and author Faye Resnick’s all over the London tube with her “Nicole Simpson: The Private Diary of a Life Interrupted.” Her British publisher , Penguin Books, throws her a big bash Friday … On the saner side of the news, A.E. Hotchner told me there are five more Hole-in-the-Wall Gang camps opening for cancer-stricken youngsters. The Paul Newman/Hotchner-originated program — supported by all the profits from the Newman’s Own food products — even boasts a camp outside Fontainebleau, on land contributed by the French government … Billy Wilder, back at his office, downplays the cataract surgery he underwent on his right eye, saying, “If I were pregnant like Arnold Schwarzenegger — that would be news”… Frank Sinatra Jr. didn’t bring friend Heidi Fleiss to his big band (19-piece) concert at the Moonlight Tango Cafe. His date was Houston attorney Cynthia McMurrey. Also on hand: Nancy and Tina Sinatra and — stag at the bar, jazz lover Clint Eastwood.RICHARD PRYOR IS WRITING his autobiog. Although he was in a wheelchair at the Cinerama Dome preem of New Line’s “‘Dumb & Dumber,” Pryor, who has multiple sclerosis, is feeling stronger. The preem raised $ 100,000-plus for the Magic Johnson Foundation and Johnson was on hand, as were the pic’s star Jim Carrey, back together with g.f. Lauren Holly, and co-star Jeff Daniels, there with wife Kathleen, Karen Duffy with Dwight Yoakam, also the Bob Shayes, comics Dennis Miller, Rodney Dangerfield and Pauly Shore, all of whom segued to the party at the Palladium. The pic goes out Friday on more than 2,000 screens … Hugh Hefner, a Bix Beiderbecke and total jazz fan, hosted a backers’ audition Tuesday p.m. at the Mansion for producer Hoagy B. Carmichael’s Broadway-bound (they hope) “Hoagy and Bix.” (He’s the son of the songwriter.) It was written by Wm. L. Wheatley and directed by Arthur Masella with Tom Fay as musical director. Malcolm Gets played Hoagy, David Jones was Bix for the 200-plus potential backers, who included Mel Torme and Ray Anthony … Would you believe Hef will be at LAX Terminal One’s W.H. Smith book Store Dec. 15 — to sign the Playboy Book … Agent Charles H. Stern has created the “Great Actors” series for interactive distribution and it’s launched with George C. Scott and wife Trish Van Devere recording classics — from Shakespeare to “Tom Sawyer” and “Little Women”– for use in CD-ROM packages, interactive TV and audiotapes. It’s aimed to educate kids. Scott directs via his Campbell-Devin Co. Other thesps to follow … Producer Demi Moore was so intent on getting Cloris Leachman for her New Line feature “The Gaslight Edition” that she’s chartering a plane to get Leachman to the Georgia filming from Toronto, where Cloris gets an extra day off “Show Boat” to be in the movie … And Sid Caesar plays his first sitcom guestint — as Jay Thomas’ father in “Love and War.” FRANK SINATRA IS 79 Monday and he’ll be birthday’d this weekend by family and friends at his Palm Springs home. He then takes off for Tokyo and concerts in the Fukuoka Dome, joined by Natalie Cole … Peggy Lee made a rare appearance Wednesday at the BevWilshire in a tribute to Les Brown, the event benefiting the Michael Burke Foundation … Vikki Carr’s sung for four U.S. Presidents — Bush, Reagan, Ford and Nixon — and she adds a fifth (Clinton) at Saturday’s Miami “Concert of the Americas.” Lalo Schifrin is one of the musical directors set by Quincy Jones for the show, at which heads of states of countries in this hemisphere will participate. Univision’s Spanish-language talkshow host Cristina Saralegui is one of the presenters … Steve Carlson co-hosts “Dick Clark’s Rock ‘n’ Roll Era” taping in Orlando … Barry Bostwick and Sherri Jensen were married in a San Francisco Japanese tea garden on Thanksgiving … Tim Conway and Tom Poston, who have been touring to raves in Tim’s “Just for Laughs — A Day With Gates & Mills,” come to the Palm Desert’s McCallum Theatre Monday through Wednesday.