Lola Dueñas' character should have been called Ramona Maneiro, but Ramon Sampedro's family told Amenábar that they didn't want the name of Ramon's "assassin" to appear in the movie, so Amenábar called the character of Lola Dueñas, simply "Rosa".
Three months before Spanish premiere, Alejandro Amenábar gave a photo to the media to be shown all over the nation to make people get used to Bardem's make-up and forget about it while watching the film to pay attention to his performance.
The trivia item below may give away important plot points.
The film is based on the true case of Ramón Sampedro who in fact suffered from paralysis after a diving accident for over 25 years. Eventually, Sampedro committed suicide. For his screenplay, Alejandro Amenábar left the original name for his lead character instead of altering it.