Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Carpenter returns to his hard action roots.

Unfairly dismissed by both critics and fans at the time of its release, John Carpenter's Ghosts of Mars is the cult director at his most b-movie retro. What Ghosts does it take the narrative of Assault on Precinct 13 (cops and criminals in an isolated police station find themselves teaming up to fight a hostile army) and sprinkles it with elements from Prince of Darkness and Escape from New York. The results might fall short of Carpenter at his best, but there is no denying the movie has enough energy (in the good, old fashioned rough and tumble sense - no wire-fu or bullet time digital hijinks found here, thank goodness) and humor to hold a forgiving fans interest. The only major flaw is a ludicrous about face attack at the 1:17 mark, other than that it delivers a fun little b-movie thrill.