Cruz joins Fassbender, husband Javier Bardem, Cameron Diaz and Brad Pitt for this unrelenting look by writer Cormac McCarthy and director Ridley Scott into what happens when greed tempts even the smartest people down the wrong track.
"It's not a violence that doesn't hurt. This isn't a video game, these are real people going through something disturbing and it has to hurt," says Cruz.
WATCH OUR VIDEO INTERVIEW WITH HER BELOW. 'The Counselor' is in UK cinemas from Friday 15 November.
More:Penelope Cruz Interview Penelope Cruz The Counselor Penelope Cruz Javier Bardem Ukfilm Penelope Cruz
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