"Adventureland" co-stars Kristen Stewart and Jesse Eisenberg must be high -- really high -- on pretending they're in love, since they're back at it in "American Ultra." A new red band trailer was just release and it's pretty trippy, with Eisenberg playing a "stoned cold killer" (groan!) with Stewart as his girlfriend. It actually looks much better than it probably should, and since it co-stars Connie Britton, Topher Grace, Walton Goggins, Bill Pullman, Tony Hale, and a bunch of other random people we'd never expect to see in a stoner comedy, we're down for a viewing.

If you're wondering what makes this a red band trailer, there are a few f-bombs, mention of a titty bar, and of course drug talk. Check it out:
Got the munchies yet? "American Ultra" opens August 21.

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