Batman Begins-Batman descending down the stairwell through the hordes of bats and landing in the most badass fashion.
Return of the King- Sam carrying Frodo on Mount Doom.
Revenge of the Sith- When Anakin and Obi-Wan engage in their epic duel.
Return of the Jedi- When Luke loses control and almost kills his father.
Jurassic Park- When the T-Rex first appears and of course the Raptors.
Terminator 1- When the T-800 endoskeleton rises from the burning debri.
Spider-Man 1- The final Green Goblin/Spider-Man fight.
Forrest Gump- Forrest beating the holy hell out of Wesley during the Black Panther gathering.
War of the Worlds- The first attack of the Tripods.
X-Men 2- Nightcrawler's infiltration into the White House and his attacks on the Secret Service.
Philadelphia- Andrew winning the case in the end.
Godfather- Don Vito Corleone's introduction and his speech.
Starman- The Alien(Jeff Bridges) returns to the ship in order to go back to his home planet. A very beautiful scene that still chokes me up.
Edward Scissorhands- Edward finally killing Jim.
POTC 2- The Kraken scene alone is the living definition of creepy and badassery.
Saw 3- Detective Matthew still managing to put up a good fight despite having a broken foot.
Rocky Balboa- Rocky's training session and him remembering the times that he and Adrian had.
The Pursuit of Happyness- Chris getting the job, plus the real Chris Gardners(spelling?) cameo in the end.
King Kong- Kong vs. the T-Rex's.
Superman Returns- Superman saving the plane, Luthor and his henchmen beating up Superman, Superman lifting the New Krypton from the sea, and his flying to the sun to gather his strength again.
Casino Royale- The fight scene in the beginning, the gun barrell, the chase sequence, the fight in the stairwell, and the end where he confronts Mr. White.
Purple Rain- The Kid playing the title track.
V For Vendetta- V's final stand.
Matrix Reloaded- Neo vs. Smith's and the chase sequence.
Saw 2- Returning to the bathroom to see the corpses of Adam, Zepp, and the severed foot of Dr. Gordon.
One Hour Photo- Sy teaching the father who was cheating on his wife and his family in general a lesson.
Powder- Jeremy aka Powder bringing the guy who bullied him the most back to life.
The Green Mile- Percy finally getting what he deserved.
Full Metal Jacket- The intro of the film alone is classic.
The Shining- Jack's slow descent into insanity.
Miami Vice- the Docks shootout sequence.
The Crow- Eric rising form the grave, shoot out at Top Dollars, and the scene where the image of the Crow is created with fire.
The Punisher- The fight with the Russian and his full on assault on anything or anyone that moves during the climax.
Sorry for the long list, but there's so many moments that are amazing in the films I love.
There's more obviously, but this is just to name a few.
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