An enterprising ten-year-old (Freddie Highmore), hoping to save his granny (Mia Farrow) from a foreclosure on her house, shrinks himself and enters the land of the tiny Minimoys in her backyard to recover some rubies buried by his grandfather. Luc Besson (La Femme Nikita, The Fifth Element) has never been one of my favorite filmmakers, but he seems to have found his metier in children’s fantasy, and this semianimated adventure is enjoyable and imaginative despite its formulaic qualities. U.S. distributor Harvey Weinstein, who mistrusts anything that lacks his fingerprints, had already cut 18 minutes from the French original when this was screened for the press, and since then he’s added some music cues and narration. Among the voice talents in this English version are Madonna, Robert De Niro, and Harvey Keitel. PG, 94 min. (JR)