Kristen Stewart Is Smokin' Hot in 'American Ultra' Poster

Check out Kristen Stewart channeling her character Phoebe in a brand new poster for her upcoming film American Ultra!

The 25-year-old actress is joined in the Nima Nourizadeh-directed film by Jesse Eisenberg, Topher Grace, Connie Britton, Bill Pullman, and John Leguizamo.

PHOTOS: Check out the latest pics of Kristen Stewart

American Ultra centers on “a stoner and his girlfriend, who become disrupted when his past comes back to haunt him in the form of a government operation set to wipe him out.”

Mark your calendars, American Ultra opens in theaters on August 21!