I'm a big fan of zombie apocalypses and movies... so I immediately resonated with the core plot! Unfortunately I wasn't good enough at mastering parkour to end up at the movie, but I enjoyed trying.
As someone who enjoyed the framing of the game, I think it could be cool to have some of those zombies visible in the buildings to add that sense of threat. (For all I know they could be in there already and I just didn't get to them!)