

For that to work, the zombies would need to talk more than just grunting. Subtitles would get annoying very quickly. Maybe the documentary crew could have some Google Translate thingy to accommodate this? Maybe less talking and more showing could be what makes this a hit?
Would the film crew be zombies as well, or do they have specific no-eat clauses in the contract? What would them being technically dead entail? Decaying limbs? Some extra strength?