At the end of the movie, during Matteo remakes the video, we see two chairs in old video record which are made by Spanish designer Patricia Urquiola for Italian furniture brand Moroso (Antibodi chaise lounge - produced in 2006). While Lena was going to open the door for red dress woman there behind we can see each of them. And also outside in the terrace we can see another chair designed by P. Urquiola for Moroso (Tropicalia chair - produced in 2009). But from 1990 to 1996 P. Urquiola was the assistant professor to Achille Castiglioni and Eugenio Bettinelli at the Politecnico Di Milano and ENSCI in Paris.
During the 1994 storyline, after Mateo is released from the hospital Judit drops him off at the beach with her son Diego. As they exit the vehicle a crew member can be seen reflected in the rear panel of the car.
After Ernesto pushed Lena on the staircase, he takes her to the hospital in his Rolls Royce. When they approach the metal gate of his Villa, you can see, almost in the middle of the frame, a blue square with a man inside, most probably a crew person.