I haven't seen the film, but would love to. Lennon was a man of extraordinary talent and vision with a complex personality. As a very young boy he was forced to make a decision literally at a seaport, whether to go with his father to New Zealand or live with his mother in Liverpool. He chose to go with his dad, but when he saw his mother crying, he ran off to her at the last moment. Of course, he ended up with his aunt. But I wonder how history would have been altered if he had gone to New Zealand.

If I could witness one event from the beginnings of the band it would be the moment McCartney introduced Lennon to George Harrison. Lennon had doubts about having a kid so young play guitar in his band until Harrison played a little for him (on a bus, I believe), and completely blew him away.