Kristen Stewart and Jesse Eisenberg Are Stoner Assassins in 'American Ultra' Red-Band Trailer

What if the paranoia from that weed you smoked wasn't paranoia at all?

That's more or less the question behind this trailer for "American Ultra," the new action-comedy starring Jesse Eisenberg and Kristen Stewart. In the movie, Eisenberg plays a stoner with a convenience-store job who finds out that he's actually a sleeper agent with deadly skills.

Stewart co-stars as Eisenberg's girlfriend, marking the second time the two have played opposite each other: the first time was in the indie comedy "Adventureland."

The trailer makes the movie look like a lot of fun, with Eisenberg's high-octane action scenes punctuated by comedic moments. The supporting cast, which includes "Nashville" star Connie Britton and "That 70's Show" alum Topher Grace, is also pretty terrific.

Check out the red-band trailer below: