New Sci-Fi Movies and Shows To Watch This Week at Home or in Theaters, Including a New Animated Sequel

This week’s entertainment lineup offers a fascinating blend of science fiction adventures, cosmic animations, and speculative television premieres. Whether you are looking for an immersive streaming experience or a trip to the local movie theater, the release schedule for the end of March and the beginning of April 2026 has something to offer. From animated plumbers exploring new galaxies to deep dives into real-world extraterrestrial conspiracies, the upcoming catalog spans multiple genres and formats. Here is a comprehensive look at all the sci-fi and sci-fi-adjacent releases arriving this week.

‘The Super Mario Galaxy Movie’ (2026)

Arriving in theaters on April 1, 2026, ‘The Super Mario Galaxy Movie’ expands the beloved video game universe into a cosmic cinematic adventure. The animated family comedy features a star-studded voice cast that includes Glen Powell, Anya Taylor-Joy, Chris Pratt, and Jack Black. Clocking in at one hour and thirty-eight minutes, the film promises a blend of fantasy and adventure as the iconic characters navigate new planets. Audiences can expect a visually vibrant journey that translates the gravity-defying mechanics of the games onto the big screen.

‘Avatar: Fire and Ash’ (2026)

‘Avatar: Fire and Ash’ makes its highly anticipated streaming debut on March 31, 2026, bringing viewers back to the breathtaking moon of Pandora. This latest installment in the blockbuster franchise explores uncharted territories and introduces a resilient new Na’vi clan tied to the element of fire. Fans of the series can look forward to another visually stunning narrative centered around survival, environmental themes, and familial bonds. The film continues to push the boundaries of science fiction world-building through its intricate alien ecosystems.

‘Time Hoppers: The Silk Road’ (2026)

Also hitting streaming platforms on March 31, 2026, is ‘Time Hoppers: The Silk Road’, a new sci-fi adventure that blends historical exploration with futuristic technology. The narrative follows a specialized team of temporal travelers who journey back to the ancient trading routes of the Silk Road. These time hoppers must carefully navigate historical events to prevent an unknown anomaly from altering the future timeline. This release offers viewers a unique mix of science fiction concepts and rich historical settings.

‘Conspiracies & Coverups’ (2026)

Premiering on the Discovery Channel on April 1, 2026, ‘Conspiracies & Coverups’ is a brand-new investigative television series led by a former CIA officer. The television show dives deep into modern conspiracy theories, occasionally overlapping with speculative topics like unidentified flying objects and extraterrestrial encounters. Through rigorous investigation and expert interviews, the host attempts to separate truth from elaborate fiction within alleged government secrets. This series provides a grounded, real-world perspective on the types of mysteries that often inspire mainstream science fiction narratives.

Please share your thoughts on this week’s exciting science fiction releases and let us know which titles you plan to watch in the comments.