First, enraged after the government of Chad provides blanket amnesty to its war criminals, an old man whose son was killed during the four-decade civil war enlists his grandson as an agent of revenge, in "Daratt." Ali Barkai, Youssouf Djaoro star. AKA: "Dry Season." Next, the Algerian desert provides a stunning new setting for an interpretation of Shakespeare's "Romeo and Juliet," in "The Desert Ark." Hacen Abdou, Messaouda Adami star. 185 min. total on two discs. Widescreen; Soundtracks: French, Arabic; Subtitles: English. In French and Arabic with English subtitles.