20 Most Rewatchable Sci-Fi Movies Of The 21st Century

5. Ex Machina

Coming from the mind of Annihilation director Alex Garland (who also penned a pair of stellar Danny Boyle efforts, The Beach and 28 Days Later), this twisty thriller sees Domhnall Gleeson’s nebbish protagonist enlisted by Oscar Isaacs’ mad genius robotics engineer to test whether his latest creation can pass for a human.

Unless Gleeson is actually a robot, too, which the flick hints at but never clarifies, or perhaps he’s all too human and has been played by Isaacs’ too-successful creation—or perhaps Isaacs, mad genius he is, wanted this outcome all along, and engineered his downfall in order to free his creation from his own grasp?

So, that attempt at summarising this flick should probably be sufficient illustration for just why it requires repeated viewing, since there are countless potential interpretations of its slippery story.