Prometheus was meant to have its opening scenes filmed in Morocco but the Arab Spring put paid to that. Iceland was ultimately chosen and two weeks of filming resulted in 15 minutes of footage, and they are some of the most impressive of the film.
Like it or loathe it with its reboot of the Alien film universe, the cinematography is beautiful.
Exterior shots of the alien world were shot in Iceland, where filming occurred for two weeks. It commenced on July 11, 2011, at the base of Hekla, an active volcano in southern Iceland. Speaking about working at the volcano, Scott said, “If one is afraid of nature in this profession then it would be best to find a different job”. Filming also took place at Dettifoss, one of the most powerful waterfalls in Europe. The Iceland shoot involved 160 Icelandic crew members and over 200 imported crew. Scott said that the filming in Iceland comprised approximately fifteen minutes of footage for the film, and that the area represented the beginning of time. Scott explained that Iceland was ultimately chosen because “here it is so rough and ‘Jurassic-like’ and that proved decisive”
From Wikipedia: http://en.wikipedia.org/wiki/Prometheus_(2012_film)
http://www.icenews.is/2011/07/11/ridley-scott-shooting-movie-by-hekla-in-iceland/
where the raven landed 
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