10 Dumbest Decisions In Sci-Fi Movie History

5. Having Terrible Security Protocols - Ex Machina

Alex Garland's directorial debut is one of the smartest and most provocative sci-fi films of the last few years, albeit one that requires audiences to jettison their disbelief in one major way.

The film centers around a programmer, Caleb (Domhnall Gleeson), who is invited to spend a week at the home of his CEO, Nathan Bateman (Oscar Isaac), where he's tasked with determining whether A.I. robot Ava (Alicia Vikander) is capable of true consciousness or not.

Naturally, nothing is as it seems, and at the end of the movie, Ava kills Nathan while leaving Caleb sealed inside the compound, as she ventures off to civilisation and presumably blends into society.

Except, it's a bit of a leap that a facility as state-of-the-art as Nathan's, complete with totally convincing synthetic humans, still relies on something as primitive as key card access.

Why wouldn't Nathan have a biometrics system or in the very least passwords, which would have prevented both Ava's escape and Caleb being sealed inside the building?

Or better yet, a failsafe system which shuts Ava down if she moves a certain proximity away from the compound? No?

You can certainly argue that it's a result of Nathan's general narcissism and arrogance, and it's definitely not enough to derail the film's general brilliance, if a concession fans nevertheless have to put up with.