Star Wars, Indiana Jones 3, Snakes on a Plane, ID4, Terminator 2
Sometimes the magic of movies is sharing with other people, as long they dont talk on their Cell Phone
All Trek's
All Star Wars
All LOTR's
All Harry Potter's
Both Tomb Raiders
The last film I ever HAD to see with my parents was opening night of the original Star Wars in 1977. I was 8 years old. After that I could be dropped off and meet my friends in front of the theater and be picked up as soon as it was over. Small towns are great.
This year? I've seen most the movies I've seen this year on opening night. Only one of them was a "had to", which I will list first:
Grindhouse (woke up bright and early to see it), The Simpsons Movie, Reno 911, Aqua Teen Hunger Force CMFFT, Superbad, Hostel 2, Halloween, Transformers, Knocked Up. There's probably more somewhere.
As for the past:
Clerks II
Snakes on a Plane
Star Wars Ep III