I'm doing this too, but I'm only watching films I haven't seen before. So far:
Good film, creepy mood, great effects. Looses it plot around halfway and turns kind of surreal. The line "We'll tear your soul apart" gave me chills.
Event Horizon (1997)
Decent sci-fi horror, it does the psychological thriller aspect very well and the cast elevates it beyond the limits of the script. Seemed a bit obsessed with showing of its "liquid in zero G" effects though.
Also, I see Christopher Nolan has been borrowing scenes again.
Hellbound: Hellraiser II (1988)
Great sequel that expands on the ideas of the original. "Your suffering will be legendary even in Hell."
Hellraiser III: Hell on Earth (1992)
...aaaaand they pissed all over the first two films and turned him into a mouthy Freddy Kruger character with a small army of pun spewing mini Freddies. "That's a wrap", no, this is crap.