Empire Strikes Back
Road Warrior
Godfather II
Dawn of the Dead
Aliens
T2
X2
Baby Cart in the Land of Demons
Trinity is still my name
Once upon a time in China 2

Here's some:

01. Godfather II - Perhaps better than the first
02. Bride of Frankenstein
03. After the Thin Man * Actually the entire series.
04. A Shot in the Dark
05. The Andy Hardy series with Mickey Rooney. It's amazing how many there were
06. Planet of the Apes movies.

Warning, no original ideas in this post!!!!

Empire Strikes Back
Godfather II
Toy Story 2
Aliens
Indiana Jones and Last Crusade
T2
X2
Evil Dead 2 and Army of Darkness (for me at least, I know many think otherwise)
Star Trek II: The Wrath of Khan

1. The Empire Strikes Back
2. Superman II
3. Star Trek II
4. The Road Warrior
5. Phantasm II
6. Dawn of the Dead
7. Terminator 2
8. Aliens
9. Psycho II
10. Jaws 2

1. Dawn of the Dead
2. The Godfather, Part II
3. Evil Dead II
4. The Empire Strikes Back
5. Star Trek II: The Wrath of Khan
6. The Road Warrior
7. The Terminator 2
8. From Russia With Love
9. For A Few Dollars More
10. The Exorcist III (I'm ignoring II)

1. The Empire Strikes Back
2. Star Trek II: The Wrath of Khan
3. Toy Story 2
4. T2
5. Rambo: First Blood Part II
6. Red Dragon
7. Silence of the Lambs
8. X2
9. Rocky II
10. Rocky IV