It’s true that plenty of sci-fi movies are more plot-heavy than character-driven, but that doesn’t mean that the best additions to the genre don’t include complex and well-developed characters. However, in most movies, not just speculative fiction, there are sometimes scenes that fit in well with the plot but end up undermining the arc of an otherwise well-written character. Though this doesn’t take away the other moments that exemplify the character’s nuanced and complex emotions and motivation, it does give the viewer pause and make them wonder why these scenes are included.

https://screenrant.com/well-written-sci-fi-characters-ruined-by-one-scene-list/