Preschooler Lulu, told to amuse herself, mopes about for a bit, then finds that her ladybug costume—red tutu, wings, red polka-dot boots and a headband with antennae—helps her morph into a bigger, ...

While Greta Gerwig’s girl-power blockbuster “Barbie” is ruling over the French box office, another much younger female-led franchise, “Miraculous: Ladybug & Cat Noir” has managed to pull approximately ...