I just watched this 2004 Spanish movie. Mar Adentro is based on a true story, about Ramón Sampedro, who, after a diving accident, is paralyzed from the neck down. For 28 years, he has fought for the right to die, not seeing any dignity left for him. A lawyer is engaged to help him.
This is a tremendously strong story, where everything, from the fabulous actors to the amazing filming, music and the words go together in creating a heartbreaking, but also life exalting movie. The question of euthanasia is an extremely difficult one, but even though I'm fundamentally against the sole idea of it, I still gain symphathy for Ramón Sampedro and his struggle. If you cry easily, make sure to stock up on paper towels before sitting down and watching this one. (Kleenex won't do...)
Direction is by Alejandro Amenábar, the lead role is played by Javier Bardem, with Belén Rueda and Lola Duenas in strong supporting roles. See here for more information.