1. Source Code (2011)

Rating: 7.5/10

Director: Duncan Jones

Cast: Jake Gyllenhaal, Michelle Monaghan, Vera Farmiga

Synopsis: A soldier wakes up in another manβs body, reliving the same eight minutes over and over to prevent a terrorist attack.

Review: A smart, engaging sci-fi thriller with a great performance from Gyllenhaal. The time-loop concept is well-executed, though the emotional resolution may not land for everyone.
2. The Thing (1982)

Rating: 9/10

Director: John Carpenter

Cast: Kurt Russell, Wilford Brimley, Keith David

Synopsis: A research team in Antarctica encounters a shape-shifting alien that can mimic any life form.

Review: A masterclass in paranoia and practical effects-driven horror. The atmosphere is chilling, the tension is unbearable, and the creature design is legendary.
3. Ex Machina (2014)

Rating: 8.5/10

Director: Alex Garland

Cast: Domhnall Gleeson, Oscar Isaac, Alicia Vikander

Synopsis: A young programmer is invited to test the consciousness of a highly advanced AI robot.

Review: A thought-provoking and visually stunning sci-fi film that explores artificial intelligence, free will, and human nature. Vikanderβs performance as Ava is mesmerizing.
4. Coherence (2013)

Rating: 8/10

Director: James Ward Byrkit

Cast: Emily Baldoni, Maury Sterling, Nicholas Brendon

Synopsis: A group of friends at a dinner party experiences strange and unsettling events when a comet passes overhead.

Review: A low-budget but incredibly effective sci-fi thriller that plays with alternate realities in a mind-bending way. Simple yet deeply unsettling.
5. Children of Men (2006)

Rating: 9/10

Director: Alfonso CuarΓ³n

Cast: Clive Owen, Julianne Moore, Chiwetel Ejiofor

Synopsis: In a dystopian future where humanity has become infertile, a disillusioned man must protect the first pregnant woman in decades.

Review: A visually stunning and emotionally gripping sci-fi masterpiece with breathtaking long takes and a powerful social message.
6. 12 Monkeys (1995)

Rating: 8/10

Director: Terry Gilliam

Cast: Bruce Willis, Madeleine Stowe, Brad Pitt

Synopsis: A prisoner from a dystopian future is sent back in time to prevent a deadly virus from wiping out humanity.

Review: A mind-bending, visually striking film with an unpredictable narrative and an incredible performance from Brad Pitt.
7. Sunshine (2007)

Rating: 7.5/10

Director: Danny Boyle

Cast: Cillian Murphy, Chris Evans, Rose Byrne

Synopsis: A team of astronauts embarks on a dangerous mission to reignite the dying sun.

Review: A visually stunning and deeply philosophical sci-fi film that blends space exploration with psychological horror. The third act is divisive but still intense.
8. Event Horizon (1997)

Rating: 7/10

Director: Paul W.S. Anderson

Cast: Laurence Fishburne, Sam Neill, Kathleen Quinlan

Synopsis: A rescue crew investigates a spaceship that mysteriously disappeared and returned with a dark secret.

Review: A mix of sci-fi and Lovecraftian horror, featuring eerie visuals and disturbing psychological horror elements. A cult favorite despite its flaws.
9. Alien (1979)

Rating: 9.5/10

Director: Ridley Scott

Cast: Sigourney Weaver, Tom Skerritt, Ian Holm

Synopsis: The crew of the Nostromo is stalked by a deadly extraterrestrial creature after investigating a distress signal.

Review: A sci-fi horror masterpiece that blends tension, atmosphere, and groundbreaking creature design. Sigourney Weaverβs Ripley became an iconic final girl.