Snowpiercer: an interesting action film; Joon-ho Bong executes with great measures of violence what is a great concept of a dystopian world, one which violence is far from being simply a concept; as it so ofter happens with good science fiction, this one has also something to say about our present times. Set design is an important part of this film, and it’s quite well executed. The cast is generally interesting (and refreshingly mixed), but Tilda Swinton in particular is fun to watch.