One more fun thing about that Beatles DVD: The three Beatles spend so much time sitting around talking in their relatively contemporary state that you can get a pretty good bead on their hair, or lack thereof. As I've noted before, as men get older, their hair either goes gray or it goes away; the only other choice is that it does both. Of course, Paul, George and Ringo all have heads of dark-colored hair, so the game is to figure out who's got a wig and who's got a bottle of hair dye.
George and Ringo occasionally wear their hair pulled back, so much so that you can see where it attaches to the scalp, and each occasionally runs his fingers through his hair, so we'll go with dye for them. McCartney, on the other hand, keeps his "hair" brushed forward over his forehead, and never touches the top of his head. Toupee!