Excellent casting, particularly with Lennon, a man who is easily parodied but not so easily inhabited. There is empathy for every character and insight into the curve of future events.
What I didn't like
The story could have gone a little deeper but for the brief running time, it got a lot in.
My overall impression
Interesting story behind the famous faux pas. John was a man of many parts who felt constrained by pop music fame.