The scoop: Based on the Marvel comic team of heroes, the film is going to be the first instalment in a trilogy with a star-studded cast that includes Game of Thrones's Maisie Williams, Split's Anya Taylor-Joy, and Stranger Things star Charlie Heaton, among others. It's been a long time coming, but this Summer, we'll finally we'll get to see these teenage mutants attempt to understand and master their superpowers while stuck in a secret facility.