a historian and also a beatles expert and a man hoping on this kind of reunion tour. martin, are you surprised with the vast outpouring and attention being paid to john's 70th? >> not surprised but really pleased. for many days people focused on the sad day in december, just one little moment and this is focusing on the life and legacy and the music. >> geraldo: among the aspects of his life being remembered is his rocky childhood explored in a new film. >> this just opened this weekend and i saw yoko last weekend and she sent her love, i said i was coming to see you. she explained it this shows john as a young boy in formation and we see what is happening to him and what influences him and affects him. he wasn't the first kid to come from a broken home and won't be the last but he took the pain and anguish and put it into something positive. >> geraldo: also part of the festivities, a new documentary. being screened tonight in central park, the film includes the inside scoop on the benefit