This movie is good! Both Jeff Bridges and Kevin Spacey are two of my favorite actors and the chemistry between the two in this movie was great.
Is Prot from another planet or is he just crazy? His story is so believable that even his own psychiatrist begins to doubt in what he thinks at first is just a disturbed and confused man.
As the story goes further we see that the man now known as Prot (Kevin Spacey) had an unimaginable tragedy happening to him. Dr. Mark Powell (Jeff Bridges) thinks that that is the reason he thinks that he is an alien, to cope with his loss. However the end of the story leaves some room open that he might be an alien after all.