Sci-fi movies haven't been as prevalent in theaters this year as superhero or action flicks. That's why some of the most intriguing science fiction films of 2025 never saw the inside of a theater at all. Now that the year is past the halfway point, the Watch With Us team has selected the five best sci-fi movies of 2025 so far. Out of this list, only No. 5 was a true hit at the box office, which may explain the genre's absence from theaters. But as long as the streaming services can pick up the slack, then there are still great opportunities to find new sci-fi stories.