Have a look at Alf Lovvold’s amazing and surreal trailer entitled “Dawn of the Planet of the Zombies and the Giant Killer Plants on some Serious Acid”. Alf is a Norwegian 3d artist who co-founded Gimpville, a small visual effects and animation studio located in Oslo, Norway. You can see the trailer in the header and a VFX breakdown and making of video below.
You can see a lot more about the project here.