Olivia Thirlby is set to star in the sci-fi action movie The Darkest Hour, from Summit and New Regency, according to Heat Vision.

Director Chris Gorak and Josh Zetumer are revising the script for the film, which is set in Moscow and follows a group of Americans traveling in the city when an alien invasion occurs.

Thirlby plays a trust fund girl trying to survive the attack who teams up with others to try to defeat the invaders.

The movie will film this summer in Moscow.