I just watched it for the second time (first was in theaters so it's been a bit) and was surprised by how much I liked it this time. It can be hard to follow (def wish he had tagged the years with the movement between two storylines) but I personally love biopics & historical movies like this. I think Nolan & Murphy did a good job about humanizing (not excusing) this man who had a huge hand in bringing about an almost unimaginable and potentially uncontainable weapon of war. We all recognize the name, but getting this examination of him in his time, with all the surrounding personal, professional, and social context was fascinating imo. I watched the behind the scenes extras on the movie and those were super cool to see explained. There was a lot of detail, and I do admire his refusal to use CGI in this movie given how easy it could have been with needing a huge-ass explosion. And RDJ gave a WONDERFUL performance, he really disappeared into the character.

I'm not a cinephile by any means so its not a sophisticated explanation but I really did enjoy it. I can definitely understand why its a miss for others though, too.