The tyranist's thoughts
Not traditionally considered a horror film by most of its fans, I found The Andromeda Strain to be a creepy, near future look at something that very well could wipe out mankind. Stephen King's The Stand, which would come a few year's later, drew upon the same basic problems to set up the world in which the novel takes place. Unfortunately, I haven't read Michael Crichton's novel to give you a comparison.
A deep space scoop has crash landed in New Mexico and all of the inhabitants but two of the little town it hit are dead. The government has a contingency plan, though, and the Wildfire team is called in to analyze the lethal problem. Can they figure out what is killing people before it spreads over the neighboring states?
Very creepy and atmospheric, the elaborate set really contributes to the heightened tension. On top of that the fundamental idea that they are pursuing is as frightening to me as all of the apocalyptic asteroid stories. Very science fiction but well worth any time you can spend to see it.