Sci-fi is easily one of the most creative genres, with the potential for some incredible endings, but while some movies hit the mark, there are plenty of others that fail to spark. Science fiction is a genre renowned for pushing boundaries and introducing new concepts and methods into film. While science fiction starts out as far-fetched, spectacular images and stories, the ways these movies are filmed end up influencing the rest of cinema.

https://screenrant.com/great-sci-fi-movie-endings-disappointing-list/