The poster for Brad Pitt's zombie-apocalypse flick is out, and if the phrase “zombie apocalypse” isn't creepy enough for you, the new one-sheet is doing its part to up the creep factor.

In the poster, zombies crawl on top of each other, creating a pile that reaches the sky, allowing several of the walking dead to grab a helicopter and pull down into their midst.

World War Z, which is based on the novel of the same name by Max Brooks, stars Pitt as a United Nations employee who races around the world, and against the clock, to stop a zombie pandemic–all while trying to keep his family safe.

World War Z opens nationwide June 21.