Wait, no Godfather 2? Seriously? Or are we limiting discussion to SF/F subjects?
I'm going to risk being struck by lightning and say that the opening portions of Star Trek TMP, when they were reassembling the crew, are my favorite part of any ST movie, despite how the rest of it went. They actually made me feel like the crew went on to have lived full lives outside of their time on the Enterprise, while all subsequent films for both TOS and TNG left a feeling that the characters largely froze in the time the series was in place, and were simply waiting to go back to the status quo of the rest of their lives.
Okay, I'm not even going to come close to arguing that it was a better film overall than the others, but that one aspect was the best thing about any of the 10 films to me.