If you love a movie with a solid story-line, and tailor an interest in the Sci-Fi movie genre, The Host, directed by Andrew Niccol, will sure satisfy your inkling.
The film takes place in a post-invasion world where aliens invade human bodies by transferring their spirits into them. A small group of humans who are left are on the run from the alien race, which justifies the invasion as a 'purification of humanity'.
The series of events in the film take an interesting turn when the main character, Melanie, is captured and used as a vessel for an alien spirit named 'Wanderer'. But Melanie puts up a fight and 'Wanderer' is forced to share a mind with Melanie. The rest of the film proceeds in challenging what is defined as 'being a human' in contrast to 'what is not'.
Now that you have a sneak peek of the story-line, one could say that it is unique. Many Sci-Fi movies depict humans as powerless vessels to alien beings yet The Host approaches this from a Humanistic approach- the power of the human drive. The film's plot focuses on the tension between Melanie and 'Wanderer' and the humans and the alien captors. So struggle is indeed the central theme.
Affixed with numerous blotches of comedic jokes and statements, The Host succeeds in bringing light into a relatively dark genre, especially when it comes to love as Melanie and 'Wanderer' squabble over suitors. Upon watching the film, the mellows of giggles and laughs can be heard in the theatre.
If one had to nit-pick anything of concern, it would be primarily over what occurs in the beginning of the film, and why the aliens are really there to invade. It is mentioned that the aliens have invaded numerous worlds but what is problematic is why? The aliens state it is to bring peace but the reasoning is not further explored. In essence, the 'why' is hollow. There is not much depth as to what is driving the aliens to introduce 'peace'.
That aside, The Host is a must-see film for the Sci-Fi fans out there. If you can look past the many one-liners or philosophical quotes that are rampant in the film, then the film is certainly one to watch.