All Sci-Fi Movies and Shows You Can Stream This Week at Home or Watch in Theaters, Including ‘Splinter Cell: Deathwatch’

It’s a busy week for science fiction, with new entries across theaters and streaming. Below you’ll find quick, factual rundowns of what each project is about, who’s involved on and off camera, and when and where you can watch them over the next few days. Dates and platforms are included inside each item so you can plan exactly what to queue up.

From a crash-landed astronaut who fears something followed her home, to an adult-animated spy saga that brings a legendary stealth operative back into the field, there’s a solid mix of tones and formats. We’ve also got returning aliens navigating suburbia, plus a new Argentinian cyber-revenge thriller making its streaming bow.

‘The Astronaut’ (2025)

Fuller Media

Written and directed by Jess Varley, ‘The Astronaut’ stars Kate Mara as Sam Walker, a NASA astronaut who returns to Earth under mysterious circumstances and begins to suspect an extraterrestrial presence has come back with her. The cast also includes Laurence Fishburne as General William Harris, Gabriel Luna, and Ivana Miličević; the film runs 91 minutes and is produced by The Wonder Company and Grinder Monkey. It arrives in theaters on Friday, October 17, 2025.

Behind the camera, Varley makes her solo feature writing and directing debut, with cinematography by David Garbett, editing by Joel Griffen and Terel Gibson, and music by Jacques Brautbar. Recent festival coverage highlighted the film’s contained setting and alien design influences, while noting principal photography took place in Ireland in late 2023.

‘Solar Opposites’ (2020– )

20th Century Fox Television

‘Solar Opposites’ is an American adult animated sci-fi sitcom created by Justin Roiland and Mike McMahan that follows a stranded team of aliens—Korvo, Terry, Yumyulack, and Jesse—adjusting to life on Earth. The core voice cast in recent seasons features Dan Stevens as Korvo, Thomas Middleditch as Terry, Sean Giambrone as Yumyulack, and Mary Mack as Jesse. New episodes land Monday, October 13, 2025, on Hulu.

The series blends family comedy with serialized side stories like “the Wall” and “Silvercops,” and is produced for Hulu after an initial development at Fox. Creators Roiland and McMahan shepherd the show’s sci-fi premise and satirical edge, with Hulu serving as the U.S. streaming home.

‘Splinter Cell: Deathwatch’ (2025– )

Ubisoft Film & Television

Based on Ubisoft’s ‘Tom Clancy’s Splinter Cell’ video game franchise, ‘Splinter Cell: Deathwatch’ is an adult animated action series developed by Derek Kolstad, featuring Liev Schreiber as veteran covert operative Sam Fisher. Additional voices include Janet Varney as Anna “Grim” Grímsdóttir and Kirby Howell-Baptiste as Zinnia McKenna. The series premieres Tuesday, October 14, 2025, on Netflix.

Kolstad serves as lead writer and executive producer, with Guillaume Dousse directing and animation by Sun Creature and Fost. Recent interviews outlined Ubisoft’s creative “guardrails” to honor the character and IP, and confirmed the casting change from the games to Schreiber for the show’s older take on Fisher.

‘Mar.IA’ (2025)

Mar.IA

‘Mar.IA’ is an Argentinian sci-fi horror thriller from directors Gabriel Grieco and Nicanor Loreti about Maria Black, an adult film star who disappears and later resurfaces transformed into a vengeful cyborg. The film stars Daria Panchenko alongside William Prociuk and Magui Bravi, with a runtime of about 81 minutes; it begins streaming on Tuesday, October 14, 2025, with availability listed on Apple TV.

Promotional materials and distributor listings describe a story that blends cybernetic body-horror and revenge elements—often pitched as “’Terminator’ meets ‘I Spit on Your Grave’.” Credits identify Grieco and Loreti as directors, with Panchenko leading the cast; U.S. home-video and digital details have been announced alongside the streaming rollout.

That’s the lineup—what are you most excited to watch this week? Share your picks in the comments!