Total Recall

In Paul Verhoeven's wild sci-fi action movie Total Recall, Arnold Schwarzenegger plays a 21st-century construction worker who discovers that his entire memory of the past derives from a memory chip implanted in his brain. Schwarzenegger learns that he's actually a secret agent who had become a threat to the government, so those in power planted the chip and invented a domestic lifestyle for him. Once he has realized his true identity, he travels to Mars to piece together the rest of his identity, as well as to find the man responsible for his implanted memory.