re: #239 Wendell Zurkowitz ((slave to the waffle light))
I think it was significant for its time. I remember the film when it first came out, though I rewatched it tonight because it has been so long. Turns out I forgot a lot of details.
Star Wars, contemporary in the genre, was much more success business wise, though Close Encounters was more critically acclaimed. Both films are credited in making Sci-Fi (though SW is to me more like fantasy ala LotR) a fundamental part of the film industry’s profits and changed the business.
Previous Sci-Fi films were probably better in many ways - 2001, Planet of the Apes, Soylent Green, etc., but they didn’t make the dent to the cash registers that SW and CEot3K did.