Didn’t read the books and can’t remember much of the movie but one thing.

The way the zombies moved as a fluid.

That was the best depiction of horde behavior I have seen. The thought that they climb over obstacles by climbing over each other was brilliant and scary.

I only read the book afterwards. Leaving the theater I thought, “Wow, what a shit zombie movie, what’s with the zombie tower. Anyways I want ice cream.”

After reading the book I thought, “Wow, this makes the movie seem even worse than I thought, adapting this would’ve been way better. They didn’t even follow the same in-universe rules!”