What movie sequels do you think buck the trend of diminished returns? Here is my shortlist off the top of my head:
Second Sequels as Good as or Better than the Original:
Terminator 2
Aliens
Tomorrow Never Dies
From Russia With Love
License to Kill
Spiderman 2
X-Men 2
The Empire Strikes Back
Sequels Inferior to the Original(s) but Still Good on their Own:
The Temple of Doom
The Kingdom of the Crystal Skull
Alien 3
The Two Towers
Die Hard: With a Vengeance
PotC: Dead Man's Chest
The Return of the Jedi
Third Sequels that Buck the Trend of Being Inferior to the Original(s):
The Return of the King
(Arguably) The Revenge of the Sith
The Last Crusade
Second Sequels as Good as or Better than the Original:
Terminator 2
Aliens
Tomorrow Never Dies
From Russia With Love
License to Kill
Spiderman 2
X-Men 2
The Empire Strikes Back
Sequels Inferior to the Original(s) but Still Good on their Own:
The Temple of Doom
The Kingdom of the Crystal Skull
Alien 3
The Two Towers
Die Hard: With a Vengeance
PotC: Dead Man's Chest
The Return of the Jedi
Third Sequels that Buck the Trend of Being Inferior to the Original(s):
The Return of the King
(Arguably) The Revenge of the Sith
The Last Crusade