Every flavor of science fiction is at your disposal here, with stories about alien invasions and alternate dimensions to mad doctors and dystopian futures. Scroll on to find CNET's roundup of the best sci-fi movies currently on Prime Video. I'll regularly update this list, so be sure to check back each month.

Exclusive: What makes a great science fiction movie? Prof. Lisa Yaszek dives into the commonalities among iconic sci-fi movies across the decades.