Being the big zombie aficionado that I am, I had to watch this one as well, even though I knew it was most likely not going to be a great experience. And true enough, it didn't really turn out to be anything interesting. Perhaps if you were a kid and watched this, you would find it to be interesting.
There is something very Nickelodeon to this movie, but then the movie does make use of some inappropriate language which had me at a loss here, because I thought this movie was meant to be for kids.
The acting performances were as to be expected from a movie of this sort. Most memorable in my opinion was, without a doubt of course, Christopher Lloyd, despite only having a small role in the movie.
It should be said that for a movie of this type, then the movie did make good use of effects without being gory and extreme. The zombies, well zemons (half zombies, half demons), as they call them, were more hilarious than then were scary.
This movie is a kids movie and doesn't offer much for an adult audience. As for the 3D effects, well that is a subject better left untouched.