Links: TVTropes, Wikipedia, IMDB (6.6).
Slither is a horror comedy that's two parts alien invasion to one part zombie apocalypse, with gross-out body horror inspired by David Cronenberg and frequent shout-outs to other films in the genre. It's pretty fun — Elizabeth Banks does quite nicely side-by-side with Nathan Fillion of Firefly fame — but I thought it didn't quite gel together like it should've, even though I can't quite put my finger on why. Because of this, my friends and I agreed that Piranha 3D was a more enjoyable watch. Score: tough call, but 3 stars out of 4.