Bryan Singer, who directed the first two X-Men movies back in the early aughts, returns to the franchise for this installment, following younger versions of the superheroes as they form their iconic team. But compared to the sleek and often thrilling X-Men: Days of Future Past (2014), the movie seems dull and bloated. The highlights belong to the teens, notably Jean Grey (Sophie Turner), tapping into her sensitivity to save the world, and Quicksilver (Evan Peters), plucking children from an incoming explosion to the sounds of the Eurythmics’ “Sweet Dreams.” The adults fail to generate much excitement: James McAvoy and Michael Fassbender do their best with slushy material, Jennifer Lawrence looks bored, and Oscar Isaac, as the villain Apocalypse, is hindered by a tiresome back story and terrible makeup. With Nicholas Hoult, Tye Sheridan, and Rose Byrne.