The film contains a non-simulated sex scene performed by Catherine Guittoneau and Hervé Gamelin. In an interview, Virginie Ledoyen, who in the scene enters the room where the two are, said:"When I unwittingly walked in on a couple having sex, Benoît Jacquot hadn't warned me what was behind the door. I am not shy at all but very modest. In this scene, I knew I was going to find a couple making love, but I didn't think they would do it for real. At the time, I was really shocked and thought to myself 'They are completely sick, I could have been warned'. "Afterwards, indeed, I thought that if they had pretended, it might have been more funny and anecdotal than anything else. Benoît kept the first take and I certainly wouldn't have had that look, so true, on a repeated take. It's hard to play up the surprise of seeing a couple having sex and looking at the place of their sex because on top of that, he had asked me to fix a point before playing the scene, and it was right on their sex. At the time, I said to myself 'Benoît is a thief, he steals things from me' and, in relation to my pride as an actress, it means that he doesn't believe I'm good enough to be able to play that... But with hindsight, I think that he couldn't have otherwise obtained such a fair look. Because it's a tricky situation: it's not a couple having sex, it's not romantic, it's a couple fucking with filthy faces."
English Title: "A Single Girl".