Arco review – Natalie Portman and Mark Ruffalo lead rainbow-hued eco animation

Portman and Ruffalo join the English voice cast of this film about a time-travelling boy from Earth’s drowned future and a girl with a robot nanny This animated feature has lots going for it: expressive character design, a delicately melancholy musical score, and plenty of strong emotional beats, but the script is a touch too derivative for its own good. Not that little kids are likely to notice or care much about low-level plot-point larceny, and the youngest will be positively bewitched by ...

By Leslie Felperin