Chaos reigns in first Prometheus trailer

You know when a trailer gets its own trailer that the film it's promoting is something to look forward to.

After three days of build-up with short teasers offering plenty of glimpses of the end product, the first official trailer for Ridley Scott's 'Alien' prequel 'Prometheus' is finally here.

[See also: The Hobbit, first trailer]

Once upon a time (six months ago) the film wasn't even supposed to be an 'Alien' prequel at all, but, as we'd all suspected, it turns out Scott was telling fibs.

The claim now is that 'Prometheus' will share similar DNA with his original 'Alien' film and the trailer definitely confirms that, as well as showing us that without a doubt this is a prequel to the much-loved franchise.

[See also: The Dark Knight Rises trailer analysis]

Confirmation comes with the shot of the room from the original film where we first see the Space Jockey, and another shot of the crew of 'Prometheus' (the name of their ship) inspecting what looks a lot like the Space Jockey's head.

Check out those shots and some of the trailer's best and most interesting moments in finer detail below.