If you enjoyed the thought-provoking documentary 'Sirius (2013)' and are looking for similar films or shows that explore extraterrestrial life, government conspiracies, or cutting-edge science, this list is for you. We've curated 10 compelling titles that will keep you questioning the unknown and diving deeper into the mysteries of our universe.

Primer (2004)
Description: A complex and intellectually challenging sci-fi film that deals with time travel and its unintended consequences, presented in a minimalist and realistic style.
Fact: The film was made on a budget of just $7,000, and its intricate plot has led to numerous fan theories and explanations.


The Fountain (2006)
Description: A visually poetic and emotionally resonant sci-fi film that intertwines multiple timelines to explore themes of love, mortality, and transcendence.
Fact: The film's production was delayed and reworked multiple times, with the final version being significantly different from the original concept.


Sunshine (2007)
Description: A visually stunning sci-fi thriller that explores the psychological and physical toll of a mission to save humanity, blending existential dread with intense action.
Fact: The film's scientific advisor was Dr. Brian Cox, a renowned physicist, to ensure accuracy in its depiction of space travel.


Timecrimes (2007)
Description: A tightly plotted sci-fi thriller that explores the paradoxes and consequences of time travel, with a focus on suspense and logical consistency.
Fact: The film was the debut feature of director Nacho Vigalondo, who also wrote the screenplay and played a small role in the movie.


The Man from Earth (2007)
Description: A dialogue-driven sci-fi film that focuses on philosophical and existential questions, with a narrative that unfolds almost entirely in a single room.
Fact: The film was shot in just a few days and was based on a script written by Jerome Bixby, who also wrote episodes for the original 'Star Trek' series.


Moon (2009)
Description: A cerebral sci-fi film that examines identity, loneliness, and the ethics of cloning, set in a minimalist and haunting lunar environment.
Fact: The film's director, Duncan Jones, is the son of musician David Bowie, and the movie was made on a relatively modest budget of $5 million.


Another Earth (2011)
Description: A contemplative sci-fi drama that blends existential themes with a quiet, emotional narrative, focusing on redemption and alternate possibilities.
Fact: The film was co-written by its lead actress, Brit Marling, who also starred in the movie.


Predestination (2014)
Description: A mind-bending sci-fi thriller that plays with time travel and identity, featuring a twist-heavy narrative that keeps viewers engaged until the end.
Fact: The film is based on a short story by Robert A. Heinlein, titled 'All You Zombies,' which is considered a classic in the sci-fi genre.


Coherence (2013)
Description: A low-budget sci-fi film that delves into parallel realities and the psychological unraveling of its characters, creating a tense and thought-provoking atmosphere.
Fact: The actors were given minimal direction and were often unaware of what would happen next in the story, adding to the film's authentic sense of confusion.


The Signal (2014)
Description: A sci-fi thriller that explores themes of isolation, mystery, and psychological tension, with a narrative that keeps viewers questioning reality.
Fact: The film was shot in just 24 days, and many of the visual effects were achieved practically rather than through CGI.
