The Top 20 Sci-Fi Films of the 21st Century

From space-invader thrillers to interstellar-overdrive headscratchers, we're counting down the best science fiction films since the turn of the century

'Attack the Block' (2011)
Courtesy Screen Gems16/20

16. 'Attack the Block' (2011)

Evil extraterrestrials versus British hood rats…guess who wins? This funny, fast-paced sci-fi comedy pits a bunch of neighborhood kids in a rough section of South London against an otherworldy invasion, and damned if their street smarts aren’t the only thing that stands between humanity and total annihilation. The fact that it flips the script and makes the so-called underclass the heroes was reason enough to embrace this scrappy take on Eighties blockbusters, but it also brings its action and alien-scares A-game (those glowing teeth!) as well. DAVID FEAR

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