It's hard to pick a favorite, but I would say from GFI it would be the scene where Tom Hagen arrives at Jack Woltz's house, and sees a teen or maybe even pre-teen girl (Liz Taylor?), upstairs putting her clothes back on with her mother nearby. It showed how the "casting couch" way of business had no limitations. My second pick would be from GFII when Fabrizio was blown up. You can run, but you can't hide. It was just too bad he didn't know who his gift was from.