Independent Cinema writes: Genres can be a constriction on a film, letting itself be restricted by boundaries set by the type of film it is. It is more often than not, the movies that defy their genre which intrigue and ‘wow’ audiences. The problems that can arise in any of these films are that they might be plagued with jarring tonal shifts and disconnected story elements which feel like they’re from another film altogether. So what Cloud Atlas has done is provide multiple stories that intersect in many ways, yet retain completely different genres, from science fiction to thriller to comedy. Adapting David Mitchell’s novel of the same name was a daunting task to begin with, and what the Wachowski Siblings and Tom Tykwer have done is craft one of the most ambitious films since the Lord of the Rings trilogy, and defied the preconceived notion of how a movie should unfold.