Blackout is a 2008 psychological thriller film directed by Rigoberto Castañeda and starring Amber Tamblyn, Aidan Gillen, Armie Hammer, and Katie Stuart. It is based on the novel of the same name by Italian novelist Gianluca Morozzi, although the plot of the film deviates heavily from the source material. The plot is about three people, one of whom is a serial killer, who are trapped in an elevator after a power blackout.