Don't read if you haven't seen this movie

Okay has everybody that hasn't seen this movie that wants to has left, for the rest of us that has seen this movie, what do you think of both Rabbi Schulberg and Arnie Stein's reactions at the end of the movie when Neil Diamond appears at the bar mitzvah. Where the Rabbi says Holy I am not going to write what he said here, and how shocked Rose is that she says Rabbi. And Arine says "how the ______________________ does he get Neil Diamond to play at a bar mitzvah"? Which of course I know that Adam had the plans of Neil Diamond perfuming he National Anthem at Dodger Stadium, and he explains that he couldn't cancel on Neil Diamond.