Who wants to live forever?

Immortality has been one of the main desires for humanity throughout history; currently, science is trying to achieve it through cryonics techniques. This article intends to trace an overview of cryonics development in the actual world and to analyze its possible consequences by studying three Spanish sf films that address human cryopreservation. The article argues the sf genre should be considered a valuable resource to generate philosophical reflections about the ethical implications of science and technology for society and human lives in the future.