Celebrity 1940S ARE IN By People Staff Published on May 7, 1999 12:00 AM Share Tweet Pin Email The World War II movies “Saving Private Ryan” and “The Thin Red Line” are more influential than you think, as are, apparently, all things ’40s. As part of its Celebrate the Century series, the US Postal Service is set to unveil a new set of stamps Feb. 18 that will commemorate big bands and the jitterbug, the baby boom, the movie “Citizen Kane,” the introduction of antibiotics, Rosie the Riveter, President Truman, baseball’s Jackie Robinson, Broadway’s “A Streetcar Named Desire,” the GI Bill and the Slinky (the wiry metal toy that could walk down stairs). In other news of a philatelic nature, black revolutionary Malcolm X, who was shadowed during his lifetime by the FBI because of his activism, was honored by the government this past week with a new commemorative 33-cent stamp. Guests at the unveiling, which took place at New York’s Apollo Theater, included Malcolm’s daughters (Attallah, Gamilah, Ilyasah, Malaak, Malikah and Qubilah Shabazz), actors Ossie Davis and Ruby Dee, singer Harry Belafonte and “60 Minutes” correspondent Mike Wallace. The Boys Choir of Harlem performed.