Sirius XM Symphony Hall host Martin Goldsmith is a movie buff. He’s also the author of The Beatles Come to America, so we asked him what he thought of two new biopics of John Lennon. Nowhere Boy is in theaters now and focuses on Lennon’s teen years and his relationship with his mother Julia and aunt Mimi. PBS is premiering Lennon Naked on Sunday. (Check back here to watch it online between November 22 and December 21.) This one is about Lennon as an adult and his relationship with Yoko Ono.