E.T. the Extra-Terrestrial (1982)

Story:
After a gentle alien becomes stranded on Earth, the being is discovered and befriended by a young boy named Elliott. Bringing the extraterrestrial into his suburban California house, Elliott introduces E.T., as the alien is dubbed, to his brother and his little sister, Gertie, and the children decide to keep its existence a secret. Soon, however, E.T. falls ill, resulting in government intervention and a dire situation for both Elliott and the alien.
Source: IMDB

Playing as both an exciting sci-fi adventure and a remarkable portrait of childhood, Steven Spielberg’s touching tale of a homesick alien remains a piece of movie magic for young and old.
Rotten Tomatoes Critics Consensus

Major accolades received by E.T. the Extra-Terrestrial (1982)

Featured in Roger Ebert’s Great Movies list.
Included among the 1001 Movies You Must See Before You Die.
Selected for preservation in the United States National Film Registry by the Library of Congress as being “culturally, historically, or aesthetically significant”.