This is the fourth film in Mexico to achieve the highest rating, which is the "D" certificate. Only this film as well as Eli Roth's Hostel (2005), Michael Winterbottom's 9 canzoni (2004) and Gaspar Noé's Love (2015) have gotten this certificate, which is usually given to pornographic films.
The original title translates to "We have the flesh" instead of "We are the flesh".
Asked how he worked with the actors to get the film's brutal nudity, Emiliano Rocha Minter said, "Before the shoot, we did a workshop that wasn't exactly an acting workshop but afterwards I felt we were an army. I, María Evoli, Noé Hernández, I felt that we could go rob a bank, grab three rifles and start the revolution. We did everything you can imagine in that workshop to throw down the walls that we had about nudity. The first reading they did completely naked, once again to break any barrier that the actors could have."
Asked how was hard to shoot the explicit sex scenes, Emiliano Rocha Minter said, "Maria [Evoli] and Diego [Gamaliel] are amazing and they know acting is about being free from yourself and that is a healthy possibility. When you hear action, you have an opportunity to be someone else without limits. You can suck a dick or have this strange sexual delirium or cry like a baby, fiction is place to fly away and break your own moral code, its a place of freedom to say what the fuck, our normal lives are so controlled and boarded in different ways that we need a space to break free and one of theme is acting. I would love to be an actor."