Ridley Scott's Prometheus is being promoted with a new full-length international trailer.

The new clip (which contains several plot spoilers) follows a lengthy viral marketing campaign that has seen fan anticiaption for the director's return to the universe of his Alien saga reach fever pitch.

The film, which stars Noomi Rapace, Charlize Theron, Michael Fassbender and Idris Elba, is set before the events of Alien, and covers the story of a group of scientists who discover an artefact that could give some explanation on the origins of man, and travel the universe before making a discovery that could end the human race.

Although a completely standalone story, Prometheus looks set to answer questions that have been mulled over since Scott's Alien in 1979, such as the origins of the ship explored by the crew of the Nostromo and the "space jockey".

The new trailer caps an interesting and original advertising campaign, through a number of viral videos.

The first of these saw Guy Pearce, starring as Peter Weyland, giving a TED conference on the future of artificial life. Fans steeped in the Alien universe are well aware of the scale and ethics of the brutal Weyland Corporation.

Another clip explores the character of Michael Fassbender's David, an android. Artificial humans, with their milky blood, have been alternatively psychotic and heroic in the Alien universe, although David's clip has certain sinister undertones, as he makes reference to carrying out acts that humans may find "distressing".

Prometheus is released on June 1.

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