About 15 minutes in, Zoe pulls on a white sleeveless top, says she is going to heck on Lily, and leaves the room. In the next shot she is checking Lily but is wearing a blue top.
Near the end of the movie, Baca is about to shoot himself in order to not turn into a zombie, but the sidearm he was using to stop a wave of zombies turns out to be a 6mm BB gun.