The author, winner of the 2008 National Comic Prize for this work, did not seem too nervous before watching the adaptation for the first time. He was talking inconsequentially with the director, seated on one side, and with a journalist on the other, about the nursing home visited. During the exhibition, a few questions from the creator to the director about any changes in his story. The rest of the room in respectful silence, accompanied by people crying in the background. At 87 minutes, the session ends with Applause. The first spectators leave the room and miss a gift: Rosa Lema, 101 years old, with dementia, sings a song in credits. A treasure that the sound engineer found in one of the nursing home he visited.
The producer Manuel Cristóbal rejected offers to do it in live action, "because the film would lose the magic".
Roca said that if the film had been shot with actors, it would have been very heavy. "The comic and animation de-dramatize the story. Thanks to comics and animation, you can go from the fantasy world to the real world in a natural way."
Recalling the time when he gave numerous lectures on Alzheimer's in nursing homes and centers for the elderly, Roca spoke: "Even so, I recognize that these years were exciting, but also very difficult. I recently went back to two residences and you don't like everything you see, because you see that the people who were more or less well a few months ago got worse. For example, the people he had seen in a wheelchair were now bedridden. It is difficult, but it also has its enriching part, such as talking to the elderly and sharing their memories ".
In an interview, the creator confessed "I am beginning to have the feeling of bands from the 80's that had only one hit and had to sing it in every performance. But I prefer it to be with 'Arrugas', because it has a fundamental social issue for many people."