ONE OF the Care Bears and WAVA's Tom Kent will host a benefit screening of the Care Bears Movie Part 2 Saturday morning at Movies at Fair Oaks Mall. Theater manager Jeffrey Benya has cut through Hollywood's corporate red tape to see that all proceeds from the $2.50 tickets go to the Special Olympics of Northern Virginia, Fairfax Chapter. Benya is also throwing in free popcorn and sodas. Call 385-9363 for details and reservations.

Local Filmmakers Hal and Marilyn Weiner will screen their Washington-shot The Imagemaker on Friday at American University's Wechsler Auditorium. The thriller, which stars "Flashdance's" Michael Nouri, Anne Towmey, Jerry Orbach, Jessica Harper and Farley Granger, premiered in town last January and is expected to get a commercial run in New York and Los Angeles sometime this spring. Friday night's screening begins at 7:30 and is free. Call 885-2041.

SHORT TAKES -- The National Archives screens Mirror of America, a portrait of America from 1915-20 with much of the film coming from the Henry Ford Historical Film Collection division, on Friday at noon. The 36-minute film was assembled in 1964 and screens free. Call 523-3000.

The National Gallery of Art continues Granada Television's incredibly successful 11-part Brideshead Revisited series through April 13. Episode 4 will be offered Friday at 12:30; Episode 5, Saturday at 6; Episode 6, Tuesday at 2; and Episodes 7 and 8 on Wednesday and Thursday, respectively, at 12:30 each day. For a schedule, call 842-6272.

The Hirshhorn Museum's free screening of Philip Glass: A Composer's Notes continues Friday evening at 8 in its auditorium. Call 357-2700 for details.

On Saturday the Hirshhorn continues its architect profile series with Michael Blackwood's Isozaki, a look at one of Japan's most influential architects. The free screening begins at 1. Call 357-2700 for a schedule.

The American Film Institute continues its Billy Wilder tribute this weekend with a smashing line-up of some of the director's best works. On Friday at 6:30 and again Saturday evening at 9 see Jack Lemmon, Marilyn Monroe and Tony Curtis in Some Like It Hot. Also on Saturday, at 6, The Private Life of Sherlock Holmes will screen. Wilder called the 1970 production his "anti-Bond picture." Then on Sunday at 8:15, see Ace in the Hole, a.k.a. The Big Carnival, the moving story of a hack newspaperman who keeps a man trapped in a cave in order to get Page One play. The story is based on a true incident, but the movie was shot down by critics in 1951. Later Wilder called it "the best picture I ever made."

Meanwhile, the "Canada's Ten Best" series continues Monday at 6:30 at the AFI with Goin' Down the Road, starring Doug McGrath, Paul Bradley and Jayne Eastwood in the story of two unemployed drop-outs from Nova Scotia who head for Toronto's bright lights and fast-paced lifestyle only to be disappointed. The 104-minute flick was a 1970 Canadian box-office smash. For a recorded AFI schedule, call 785-4600; for ticket information and reservations, call 785-4601.

Washington's loosely knit avant-garde film club, I Am Eye, meets Monday evening at 8:30 at D.C. Space, Seventh and E streets NW. Admission is $1 or one film. Call Pierre DeVeaux at 667-6498.

The National Geographic Society's free series of Tuesday movies at noon screens Thoroughbred, which looks at how the horses are bred, trained, raced and traded. Its Gilbert H. Grosvenor Auditorium is at 1600 M Street NW. Call 857-7133.

Georgetown's Biograph Theater continues its salute to past Academy Award winners this weekend with Witness, winner of two Oscars this year, and The Stone Carvers, last year's winner in the Best Documentary Short category, which was produced and directed by Washington's own Majorie Hunt and Paul Wagner. Later in the week see All About Eve and The Grapes of Wrath. Call 333-2696 for showtimes.

The theme of the month for the American History Museum's "America on Film" series is "The Bad and the Beautiful." The offerings begin on Wednesday at noon in Carmichael Auditorium with George Cukor's 1932 three-star production for RKO, What Price Hollywood, starring Constance Bennett, Lowell Sherman and Neil Hamilton. The 88-minute movie was later remade several times as A Star Is Born. Call 357-2700 for the April schedule of free movies. FILM HISTORY -- On Friday, Los Angeles celebrates its 136th anniversary as an incorporated city. Also on Friday, actress Catherine Spaak turns 41 and actress Marilu Henner, 34. It was 10 years ago on Saturday that reclusive billionaire and movie producer Howard Hughes died at age 72. Saturday's birthdays include actress Bette Davis, 78; Gregory Peck, 70; actress Gale Storm is 65; impressionist-actor Frank Gorshin, 52; actor Michael Moriarty, 45; actor Max Gail is 43. Celebrating birthdays on Sunday are actor-director Ivan Dixon, 55; Billy Dee Williams, 49; and actor Roy Thinnes, 48.