The Horde (2009) is a French zombie action-horror film where cops and criminals must form an uneasy alliance when the undead overrun a high-rise tower. Mixing crime-thriller grit with apocalyptic zombie carnage, it delivers relentless gore, claustrophobic siege tension, and a stylish European spin on the zombie genre.

Från IMDB:
An end of the world battle between gangsters, cops and zombies.