just watched Man From Earth (2007). It was written by Jerome Bixby, who wrote the screenplay for It! The Terror from Beyond Space, wrote some episodes of the original Star Trek series, and Fantastic Voyage.
If you like movies with all talking in it, this is one for you. It's about a guy spending a day at a cabin with colleagues from a college. He tells them he's been alive for 14,000 years and they ask him questions to see if he can prove it. I think this movie would be in my top 50 of all time. Very well done.