If last week's alienfest had you wiping slime off of yourselves, this week's releases will have you the shivering behind your couches. We have another scarefest on our hands and whether you'd get scared or not depends on what you're scared of the most.

In the Batman series, the Scarecrow uses people's fears against them and this week's goodies for your Blu-ray home entertainment systems pretty much do the same thing - play on certain fears. Some people might be scared of being a victim of medical malpractice, while some are scared of their past and the blurred line between real memories and fabricated ones. Others fear the supernatural, while others are scared of real world problems and their effects.

What's on the list this week? We've got a remake of Takashi Miike's Chakushin Ari (One Missed Call), a documentary on global warming and its effects (Six Degrees Could Change the World), a very very creepy orpahanage (The Orphanage), and an even freakier hospital (Sublime). Let's check them out, shall we?

  

Imagine this: You go to the hospital to get some routine semi-invasive surgery done. When you wake up, you get informed that you got a different kind of surgery because of some mix up at hospital. That is basically where it all starts in Sublime, a direct to DVD feature that centers on what first seems to be an innocent trip to the hospital. Medical malpractice? It's only the tip of the horrors in Sublime.

Arguably, documentaries about global warming make some people head for the hills faster than global warming itself, but National Geographic's feature Six Degrees Could Change the World presents itself as an insightful look at the theory that world temperatures will be six degrees warmer in 2100. Will we see the Amazon become a savannah? Will the world's cities sit underwater in the near future?

The Orphanage is a Spanish movie that centers on Laura, who comes back to the since-closed orphanage she grew up in to reconstruct it and turn it into a home for sick children. She moves into the said orphanage with her doctor husband and their adopted son. The horror all starts when the boy telling his parents about an imaginary friend: a boy with a sack over his head.

That's it for the Blu-ray releases for this week. Check out the releases in convenient list form:

• The Orphanage (New Line Cinema)
• Six Degrees Could Change the World (National Geographic)
• One Missed Call (Warner Bros.)
• Sublime: Uncut (Warner Bros.)