This Brazilian movie is about Alain Kardec, the famous spiritist from the 19th century who wrote the "Spirit's Book" (still a good read IMO). I found it wonderful, and deeply moving. There are so many touching scenes in it and some great acting. And Kardec's life (as depicted here) really is the archetypical journey of the "truth revealer".
I wouldn't watch the trailer, as it might spoil it a bit (as trailers so often do), but here is a link to the Netflix page (it's a Netflix production I think):
Kardec | Netflix Official Site
It is in Portuguese originally, but we watched it in English, the dubs are extremely well done. I shed quite a few tears! Highly recommended!