The Jackhammer Massacre (a.k.a. Jackhammer  2004) C-89 min. D: Joe Castro. Aaron Gaffey, Kyle Yaskin, Bart Burson, Nadia Angelini, Evan Owen, Rob Rotten, Rachel Rotten, Desi O'Brian. A direct-to-DVD revenge/slasher movie details a successful businessman's fall into insanity and growing love for his jackhammer, thanks to drugs. The first slasher movie in memory to blame its killer's antics on drugs...for a while, it even works too (with some nasty & gory special effects). It's nice to see a direct-to-DVD slasher gorefest. Unfortunately, the film's horrendous acting (worse than anything the 80s slasher films had to offer, which is really sad) and laughable last 20 minutes lead to its downfall. There is no excuse for the filmmakers to have been satisfied with the amount of bad acting in this movie (though the lead, Aaron Gaffey, isn't half bad). RATING: 3 out of 10. Rated R for graphic violence and gore, grisly images, drug use, sexuality, adult themes, and profanity.