V (1983)

Alien "Visitors" arrive on Earth, and reveal themselves to the United Nations.  They appear human, but require special glasses to protect their eyes and have distinctive voices.  The Visitors reach out for help, needing chemicals and minerals to aid their ailing world.  In return, the Visitors promise to share their advanced technology with humanity. The governments of Earth accept the arrangement, but the Visitors begin to gain considerable influence with human authorities.