Even a disguised race war, as in the brave but overly weighty War for the Planet of the Apes (which remade Apocalypse Now with apes standing in for the Vietnamese) couldn't find a big enough audience.
The setting for Perfect Dark sees two alien races at war with each other; the Maians, who resemble the typical gray alien archetype, and the Skedar, vicious reptilian creatures who can use holographic technology to disguise as humans.