Space Police (2004)

Aliens come to earth, but not just any aliens. These aliens love human flesh and in order to get as much of the delectable galactic treat what better scheme than open up a junk food store and sell 'hamburgers'? However, to resist the invaders and not be eaten as a species humans and a benevolent space force join together and fight back. Will the fellowship win or are the burger munchers unstoppable? It depends on the junk food employees, a sergeant and a girl among others.