On the opening week-end, Prometheus – the Ridley Scott directed Alien prequel – made off with $50 million at the domestic box office. Add to the tally another $91 million that the film has made overseas and Prometheus is well on its way to recouping its rumoured $200 million production budget.

What it might also suggest is another parade of Alien rip-off films to be marketed out to our DVD shelves and On Demand options screens. Not long after Ridley Scott’s 1979 masterpiece aboard the Nostromo, Alien rip-off movies could be found by the bushel full attempting to jump on the original bandwagon of Dan O’Bannon’s screenplay.

Killer Reviews has taken a step back in time to review these inferior copycats and we present to you the 9 most blatant rip-offs of the 1979 Alien classic.

Click HERE to see the list