Today, we get a lot of movies that are supposed to be throwbacks to the 70's and 80's era of horror and exploitation. Usually, they get this wrong ("Malevolence", "Satan's Playground", "The Hazing", etc.), but sometimes, a movie gets it right. Fortunately, "The Roost" gets it right.
Opening with the type of horror movie host that you saw in the old days, "Roost" is actually a movie-within-a movie. The actually movie is nothing original: A group of friends car breaks down, they get stranded, and run into a deadly force (here it's bats that turn victims into zombie-like killers) While the premise and movie in a way is nothing that original, it works because of how it is all done. There is gore, but it's not a gore fest, as the movie focuses more on atmosphere and suspense (which fails on a few occasions) than gory slapstick gags and homages that can grow tiresome. Also effective is the way director sets up several scenes, including a sequence where a cop is attacked by bats. Adding to it is a wonderfully creepy screeching violin score, and some effective (but never over used) CGI effects involving the bats.
"The Roost" won't change the face of horror. It's not too original and the acting is mediocre at best. However, it's still a blast, and will be a treat to those who grew up going to see Grindhouse movies or who watched creaky, faded videos of horror movies.
