The WRONG TURN franchise is kinda fun, but then, I have always liked Cannibal Mutant Hillbilly movies.
Now, I DID see a chunk of one of the later films, but dunno which number it was. It's one where there's a group of teens stuck in some snowed in laboratory and a bunch of freaks that were held captive break free and start attacking them. Dunno if it was four or five. I didn't watch the whole thing cause it was on Sci-Fi channel so I knew all the "good" stuff would be cut out. (Gotta give this film points for social progress though, it had an interracial lesbian couple! Woot! Woot!)