(John Carpenter's) Ghosts of Mars

The easiest way to review this film is probably just to list all the films/books that it rehashes and lifts from, so:
John Carpenter's own older films

• Alien taking on form of human, no one can be trusted - The Thing


• Cops enlist help of dangerous criminal during a siege - Assault on Precinct 13


• Someone who looks like Alice Cooper wandering 'round being chief bad guy in a kind of unspecified way - Prince of Darkness


• Dangerous misty thing - The Fog


• Ice cube's character - Snake Pliskin


• Western tropes set in a different context - Vampires


• Bad Metal Soundtrack - Vampires


• Poor acting - They Live

Others

• People being dismembered by sharp thing - Screamers


• Squad of Tough guy marines - Aliens (etc.)


• Gross out piercing scenes - Return Of The Living Dead 3


• Homosexuality is implied to be the norm - Forever War


• Lots and lots of stuff - Martian Chronicles


• Dangerous criminal can be trusted but then can't be trusted, plus their on an alien planet where something has woken up - Pitch Black


• Structure bookended and interspersed by scenes of a trial where the witness has an impossibly privileged view point - That Startrek episode with captain Pike, (The Menagerie?)


• Gratuitous scenes of Natasha Henstridge in her underwear - All the films she's in.

In spite of all the bad points and the fact that it's chronically derivative it's a pretty engaging film, the battle scenes are dragged out for too long but the rest of it is very tight, hardly any let up in the action. Most surprisingly there are some pretty good ideas in there, though they always take second place to the action.


IMDB

CAPalert (severed forearm, many hanging decapitated bodies - repeatedly, ripping the face off of others and wearing as masks,
insane desperation - multiple, adult in underwear)