Greenfox
"Just when you thought it was safe to be dead."
A group of kids discover one of the drums containing a rotting corpse and release the 2-4-5 Trioxin gas into the air, causing the dead to once again rise from the grave and seek out brains.
Night of the Zombies
The Cabin in the Woods
I Survived a Zombie Holocaust
C.H.U.D.
Bio Zombie
Burial Ground
City of the Living Dead