REANIMATED

The enormous success of such animated features as The Little Mermaid and Beauty and the Beast has made big-budget cartoons for audiences of all ages seem like a sure thing at the box office. Today almost every major studio has at least one animated feature on the drawing board. Here's a sample of what's to come: *ROCK-A-DOODLE A Don Bluth (An American Tail) film about a rooster that becomes a singing sensation known as ''The King.'' Glen Campbell provides the crooning (Samuel Goldwyn, April 3). *FERNGULLY: THE LAST RAINFOREST A modern musical myth about a rain forest and its elfin inhabitants. Celebrity voices include Robin Williams and Christian Slater (Twentieth Century Fox, April 10). *BEBE'S KIDS The Hudlin brothers (House Party) are behind this comedy about a group of irrepressible inner-city kids. Based on characters created by late comedian Robin Harris (Paramount, summer '92). *COOL WORLD Ralph Bakshi's latest mixes live action with animation. A cartoonist (Gabriel Byrne) finds himself inside the two-dimensional world he's created. Voices include Kim Basinger and Brad Pitt (Paramount, summer '92). *WE'RE BACK A story about contemporary dinosaurs in New York City. The stellar cast of voices includes: Walter Cronkite, John Goodman, Jay Leno, and Martin Short (Universal, fall '92). *ALADDIN The last collaboration of the musical team of Alan Menken and the late Howard Ashman (Walt Disney, fall '92).