Part Independence Day, part Shaun of the Dead with a dab of Signs, Gremlins and Goonies thrown in, Attack the Block is more Sci Fi than horror but is a great movie. To continue with movie analogies the tone of the movie closely approximates Tucker and Dale vs. Evil.
Set in South London, the movie involves a gang of teenage hoodlums whose night of delinquency is interrupted when aliens begin invading their neighborhood.
The movie is succesful on all levels assuming you don't mind a bit of humor mixed in with your monsters. I was amazed at the range of reviews and ratings viewers gave this movie but I suspect some of the lower ratings were due to the inability of the people to 1) understand the English accents and slang and 2) the inability to "get" English humor. In addition, the main protagonists in the movie are the young thugs and many people just cannot appreciate a movie when the good guys…aren't.
This was director (and writer) Joe Cornish's first movie, and he used a lot of first time or little known actors. The boys in the gang did a great job with their parts and the addition of Nick Frost (Ed from Shaun of the Dead) rounded the cast out well although his part is limited.
The special effects were minimal but well done, the aliens being shown in brief spurts but with a well done suit. The appearance of most of them is that of an oversized baboon with their facial features being hidden by the dark fur but with a huge set of fluorescent blue teeth.
Attack the Block easily gets 4 out of 5 stars and may even bump up to a 4 1/2 if you are a fan of English films. The first time I saw the movie it was on cable but it made such an impression I ordered the DVD as soon as it was over. It is a must for any true horror and/or Sci Fi collection.
The soundtrack is pretty good as well. Below is a YouTube video of Sound of the Police, one of the songs from the movie