AS PART of its "War in Film" program, the National Archives will offer a seminar on propaganda cartoons Friday at noon in its fifth-floor screening facility. Cartoons to be shown include Jack Kinney's Der Fuehrer's Face, the now-classic 1943 Oscar- winner from Disney in which Donald Duck gets trapped on a German assembly line. The speaker will be Michael Shull, a Ph.D. candidate in public communication at the University of Maryland, who has a book coming out on the subject. The seminar is free; call 523- 3347. The Archives is at Pennsylvania Avenue and Eighth Street NW.

Beginning Friday afternoon at 5:30 and continuing for the next five Fridays, the National Museum of American History is presenting a free film series on the atomic bomb. This Friday's attraction is The Day After Trinity: J. Robert Oppenheimer and the Atomic Bomb, the 1981 documentary about the development of the weapon. Next week's show features historical footage from Hiroshima and Nagasaki. The July 26 program is Henry Hathaway's rarely seen 1945 work The House on 92nd Street, which features Lloyd Nolan, Signe Hasso, Gene Lockhart and Leo G. Carroll ferreting out spies in New York City (the trend-setting mixture of documentary and feature filmmaking styles even includes some authentic footage of fifth column agents at work, courtesy of the FBI). The August 2 show is Stanley Kubrick's Dr. Strangelove; the August 9 attraction is the macabre but funny 1982 documentary Atomic Cafe; and the final film of the series, on August 16, is Lynne Littman's Testament, in which Jane Alexander tries to keep her family together after nearby San Francisco is bombed. The films will be shown in the museum's Carmichael Auditorium, 14th Street and Constitution Avenue. Call 357-2700.

The Washington Film Council and The Production Center will host their third summer seminar, "Licensing and Distribution," Tuesday from 7 to 10 p.m. Speaking on the ins and outs of ownership and marketing will be Marc Chinoy, producer of the locally made animated feature I Go Pogo and special consultant to Star Trek: The Motion Picture. Cost of the seminar, which will be held at The Production Center, 1950 Roland Clarke Place in Reston, is $25 (refreshments included). You register by calling Anne Polley at 703/620- 4490.

The local chapter of Women in Cable will host a seminar on Self Marketing -- Packaging Your Skills and Experiences Positively on Tuesday at 6:30 at the Ramada Renaissance Hotel, 1143 New Hampshire Avenue NW. Guest speaker will be Ron Castell, a media consultant with marketing experience in cable, pay TV, broadcasting, banking and retailing. Cost is $10 for WIC members, $15 for non-members (refreshments and a cash bar will be available). Attendance is limited to 40; you can reserve a spot by calling Roanne Robinson at 775-3655.

The Country Girls will have an encore screening at the Natural History Building's Baird Auditorium Tuesday at 6. Made for British television in 1983, the film features Sam Neill ("Reilly, Ace of Spies"), location photography (Dublin and County Wicklow, Ireland) and a screenplay by Edna O'Brien based on her novel of coming of age in the mid-'50s. A presentation of the Smithsonian Institution's Resident Associate Program, the screening is $4 for members and $5.50 for nonmembers.

In related RAP news, local programmer Karen Jaehne has arranged a new Italian series entitled Roman Holiday, to be presented over seven Wednesday evenings beginning this coming Wednesday. The program kicks off with the Washington premiere of Italian comedian Maurizio Nichetti's Splash and continues with Bernardo Bertolucci's The Traged of a Ridiculous Man; the Luciano Odorisio comedy Dear Maestro; Nanni Loy's new comedy Where's Picone? (starring Lina Wertmuller regular Giancarlo Giannini); Luigi Magni's 1978 historical drama In the Name of the Pope King; Daniel Schmid's clever quasi- documentary Tosca's Kiss; and an early film by Paolo and Vittorio Taviani, Allonsanfan, with Marcello Mastroianni as a 19th-century revolutionary. All screenings will start at 8, and all films save "Tosca's Kiss" will be shown in the American History Building's Carmichael Auditorium (the Schmid film will screen in the Natural History Building's Baird Auditorium). Series tickets are $24 for members; $30 for non-members. Individual tickets are $4 and $5.50 (cost includes program notes). Call 357- 3030.

According to the Washington-based Motion Picture Information Service, the area's top- grossing pictures for the week ending July 4 were, in descending order, Cocoon (holding fast at 17 screens in its second week); St. Elmo's Fire (showing a strong regional opening at 14 houses); Pale Rider (ditto at 21 locations); Rambo: First Blood Part II (dropping from 20 to 19 screens in week six); The Goonies (good enough to stay at 20 houses in a full month of release); Prizzi's Honor (dropping a site to 13 theaters in week three); Fletch (moving from 18 to 16 sites in its fifth week); Lifeforce (still at a consistent 19 locations in week two); A View to a Kill (losing four screens to 16 houses in its sixth week); and Brewster's Millions (hanging on at 12 locations -- down from 14 -- in week six).

PAGES OF FILM HISTORY -- A happy birthday this date to Milton Berle, Bill Cosby, Connie Francis and Cheryl Ladd. The first Screen Actors Guild meeting was held 52 years ago this date.

Veteran comic Terry-Thomas (real name: Thomas Terry Hoar-Stevens) has a birthday on Sunday, as do director Ingmar Bergman, Polly Bergen and Rosey Grier. D.W. Griffith's first film, The Adventures of Dolly, was released 77 years ago Sunday.