The first sci-fi movie I remember seeing was Altered States, and I loved it! I was 11 then, but I love it still, even today. Since I have, of course, loved Star Wars, Alien, Independence Day, Predator, the list is endless. I love the possibility of life on other worlds, but am saddened by how more often than not in our literature and films we wind up killing each other.
I wish that we could imagine better stories with happier themes, where we impossibly all just get along. In the meantime I offer for you viewing enjoyment a link to the fabulous sci-fi art of Pascal Blanche.