Moving hairline/toupee?

Did anyone else notice how Ralph Fiennes hairline kept changing back and forth? One minute it was straight across, the next, it was noticeably receded. Same with Al Pacino in "The Godfather". I know they did some creative comb-overs (when they remembered) for Pacino but was Fiennes wearing a toupee in some of the scenes? I notice little things like hair, make-up and dress and I can't believe make-up people and hair stylists can be so clumsy as to not stay consistent with an actor's hair. Another thing was how everyone was so tan and then suddenly went pale as ghosts once they got to Cairo. My only guess is they shot the movie out of sequence; the interiors first and then outdoor locations after. Still a good movie though!