Below are some of my personal favorites, in addition to some that's already listed above

The Lord of the Rings: Fellowship of the Rings
- The ring drop in the opening scenes, and the shockwave that follows
- Many more throughout the trilogy, to many to list out

War of the Worlds
- The tripods emerging for the first time

The Incredible Hulk
- Campus battle, standout scene would be the sonic cannons
- Chopper minigun during the final battle

Master and Commander: The Far Side of the World
- Whenever the cannon goes boom

Valkyrie
- Desert bombing scene

Minority Report
- Pulse gun in the Audi factory

Transformers
- Ironhide rocket flip

Casino Royale
- Building colapse in Venice

Swordfish
- Explosion in the opening scenes

Iron Man
- Emerging from the cave
- Battle in Gulmira
- Final battle. During the scene where he flies out to space, check out the scene where the thrusters loose power. The "zzub..zzub" sound veli syiok

Finding Nemo
- Darla tapping the aquarium

Pearl Harbor
- Pearl Harbor attack

Dragon Tiger Gate
- The two restaurant fight
- Final battle

M&C is already out on BD if that's what you're waiting for. As for the other two, the DVD that I have still sound awesome

hehe... I'm at 11 o'clock gain, -2 on the AVR

Watched 2012 just now. Didn't know that the end of the would could sound so phenomenal with lots of bass