This article appeared in the May 23, 2025 edition of The Film Comment Letter, our free weekly newsletter featuring original film criticism and writing. There, former political prisoner Vahid (Vahid Mobasseri), hearing the distinctive squeak of the man’s prosthetic limb, believes him to be the sadistic officer called “Peg Leg,” who tormented him and others during their sentences. Now, a short word on a long film, Pedro Pinho’s three-and-a-half-hour Un Certain Regard selection I Only Rest in the Storm. Portuguese civil engineer Sérgio (Sérgio Coragem) arrives in Guinea-Bissau to conduct an environmental-impact study for a proposed road, continuing the work of an Italian predecessor who abandoned the project under mysterious circumstances. The longest film at this year’s Cannes is less a test of endurance than of attention, which it amply rewards.