Close Encounters of the Third Kind (1977)

IMDB
Genre : Drama, Sci-Fi
TRAILER
Director : Steven Spielberg
Stars : Richard Dreyfuss, François Truffaut, Teri Garr, Melinda Dillon
Plot : Roy Neary, an Indiana electric lineman, finds his quiet and ordinary daily life turned upside down after a close encounter with a UFO, spurring him to an obsessed cross-country quest for answers as a momentous event approaches.