Six years ago, NASA send out a probe into space to collect samples of alien life. It crashed upon re-entry over Central America. When lifeforms appeared there, half of Mexico was quarantined.

Now, six years later, a US journalist agrees to escort an American tourist cross the border. And Jon Hopkins wrote some music to go with it.

Yes, after the score for Monsters turned up on YouTube at terrible quality, Hopkins took it upon himself to offer out the main Monsters theme online. For free.

And if that's not enough, how about the prospect of finding intelligent life in the universe? Director Gareth Edwards and Astrobiology Professor Lewis Dartnell sit down to chat about the likelihood of E.T's phoning home.

Monsters is out in the UK on Friday 3rd December. Read on for both the video featurette and one track from Hopkins' rather snazzy score.

Featurette - Science

Monsters Theme - Jon Hopkins