What happens when a costumed universal space hero is put out to pasture? Or, rather, the actor portraying him is? That's the basic concept behind Jeff Chang's Taiwanese sci-fi action comedy Machi Action. A surprise hit in Taiwan - where it opened in the third spot behind The Grandmaster and Life Of Pi - stars Bolin Chen as the actor thrown out of work when producers decide they need a fresher face to stomp on their weekly galactic monsters. It's the sort of concept you would expect to come out of Japan, if anywhere, but Chang seems to have nailed it and the trailer is a clever, playful and heartfelt bit of work.