As follow up to the worst sequels, I thought a list of the best sequels would be in order. I left out most of the older movies because it was easier to make sequels back then with all of the studio contracts and such. If you want a full list of movies, please visit www.imdb.com which is a complete library of the movies.
Best Sequels of All Time

The Godfather Part II
The Empire Strikes Back
Star Trek II: The Wrath of Khan
Terminator 2: Judgment Day
Kill Bill II
Aliens
Meet the Fockers
Spider-Man 2
Mission Impossible III
Cheaper by the Dozen II