Watched this the other night. Not sure how accurate it is, but I believe the preface of the movie was that all the events of the movie are based on the real life of Einstein and that all words in the film are his own, either written or spoken.
Overall, I thought it was pretty well done. I had never really considered the personal burden he must have carried when his theory of special relativity directly impacted the development of the atomic bomb and the way in which he forever changed the world. There were lots of interesting insights into Einstein's involvement(and/or lack there of) in the development of the atomic bomb.
The film also highlights a lot of stark similarities between the state of the world(pre WWII) and the state of the world today.
I would definitely recommend.