Paul Rudd stars as ex-con Scott Lang, jailed for a lovably anti- corporate crime, now struggling to hold down a job and reconnect with his estranged daughter. Ant-Man nips nimbly back and forth between sizes, often within the space of a single leap. It's a peculiar superpower of which the film never quite gets the measure: bath-tub terrors and in-briefcase battles are fun, but action sequences in which Scott (Paul Rudd) mounts flying insects. Not great in action sequences, nor does the humor lasts. Instead, we're left pondering how much less engaging Rudd is than Robert Downey Jr, and how much more we laughed at the properly peculiar Guardians of the Galaxy. Ant-Man is another Marvel disappointment.