Six films to watch this week

Naples magnificently portrayed in ‘Pompei: Below the Clouds’; a search for justice in Stalin-era drama ‘Two Prosecutors’; literary biography meets 21st-century anxiety in ‘Orwell: 2+2=5’; open-marriage comedy ‘Splitsville’; Ryan Gosling goes intergalactic in space epic ‘Project Hail Mary’; ‘Dead Man’s Wire’ is a dangerously taut kidnapping thriller. Reviews by Jonathan Romney