Baseball is back, launching a new major-league season April 3. That, of course, is big news in Kansas City, where the Royals begin defense of their first World Series championship in 30 years. Hollywood has revolved scores of movies around our national pastime, many of them acclaimed but some – also eminently watchable, insightful, or both – that have gone underappreciated. The Library screens four of these overlooked gems. SATURDAYS AT 1:30 P.M. Stanley H. Durwood Film Vault Central Library, 14 W. 10th St. April 9 Eight Men Out (1988; PG) April 16 The Bingo Long Traveling All-Stars & Motor Kings (1976; PG) April 23 Cobb (1994; R) April 30 Bang the Drum Slowly (1973; PG)