K-PAX is a 2001 American science fiction film directed by Iain Softley and starring Kevin Spacey, Jeff Bridges, Mary McCormack and Alfre Woodard. The screenplay, written by Gene Brewer and Charles Leavitt, is based on a novel of the same name by Brewer about a psychiatric patient who claims to be an alien from the planet K-PAX. During his treatment, the patient demonstrates an outlook on life that ultimately proves inspirational for his fellow patients and especially for his psychiatrist.

A semi-interesting concept is somewhat ruined by a sub-par execution and lengthy scenes that seem to go nowhere. The acting by the two leads is quite good, as are some of the more interesting scenes, but the ultimate reveal is a bit disappointing, though the ambiguous ending is suitable. The mental hospital scenes have a 'been there, done that' feel to them.