Billion Dollar Brain (1967) is a Thriller film that follows a former British spy stumbles into in a plot to overthrow Communism with the help of a supercomputer. But who is working for whom? Currently, you can watch Billion Dollar Brain on Amazon Prime Video, fuboTV, MGM+ Amazon Channel, MGM Plus Roku Premium Channel. Streaming availability may vary by country and platform over time. It has a user rating of 5.6 out of 10 from 116 votes. Fans of thriller movies may also want to explore similar titles below.