Florence Foster Jenkins was a very good movie. I, too, thought it could easily have been a Woody Allen film. Streep, Grant and Helberg were excellent. It was nice to see Helberg play a character completely unlike the one he plays on Big Bang Theory, and also to see him removed from that show's annoying laugh track. He did well.
Interesting that Streep's last lead role was as a pop-rock singer in Ricki And The Flash, and in Florence Foster Jenkins she plays someone who can't sing at all. Not an easy transition. Amazing actress.