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.
Greenfox
Patient Zero
Scared Stiff
Zombie Flesh Eaters 2
Santa Preys For X-Mas
Zombie Planet 3: Kane Chronicles
Beach-O
Still
I Am a Hero
Hocus Pocus
Plan 9 from Outer Space