Day of the Dead (1985) on Netflix

The Dead have conquered earth, leaving just small groups of people out of their clutches. One group made up of both scientific and military personal, hiding in a bunker somewhere in Florida tries to get in contact with other survivors of the zombie infestation, but find themselves quite alone in this new world. Desperately searching for a cure and therefore indulging in strange experiments to overcome this strange transformation into zombies, the scientists loose the faith of the military, resulting in a race against death while the zombies take over the facility.. Only common sense can save them now...