Most trailers in the 70's did not show most of the movie. The trailor for Exorist, Jaws, Star Wars, Cookoo Nest told nothing of the storyline. I have to agree the Godfather trailors really sucked and is perhaps the worse trailers I have ever seen...Part two was laughable. If anyone remember the preview for the Godfather: Complete novel for Television, they were great.

GF III had a great trailer...it was perhaps better than the movie. I reamember in Summer 1990, I would watch that awful, Days of Thunder just to see the GF III trailer.