Geoffrey Giuliano is a Beatleologist who has written lots of books about them ,notably an interesting Harrison biography (Harrison reportedly said: "this guy knows more about my life than I do").He appears in his movie,as some kind of tourist guide who takes the viewer to Abbey road,the roof-where-the-last-concert-took-place ,and the gates of Strawberry Fields. Most of the interviews come from the post-Beatles era: Pete Best (and Fred Seaman ) speaks of the savage days in Hamburg .There is a lot of unseen photographs although they are sometimes anachronistic : for instance,they are talking about the campaign for peace while showing pictures of Lennon with his second son Sean.
Sorry, but for now we weren't able to find movies like The Beatles: A Celebration.