Aw man, only five? This'll be tough.
The Village - James Newton Howard (all time favorite, it's what first got me hooked on film music)
Serenada Schizophrana - Danny Elfman
The Fountain - Clint Mansell
Memoirs of a Geisha - John Williams
The Ring - Hans Zimmer
Honorable Mentions:
Lady in the Water - James Newton Howard
Alice in Wonderland - Danny Elfman
Black Beauty - Danny Elfman
Signs - James Newton Howard
Waterhorse: Legend of the Deep - James Newton Howard
Defiance - James Newton Howard
King Kong - James Newton Howard
The Last Airbender - James Newton Howard
How to Train Your Dragon - John Powell
Last of the Mohicans - Trevor Jones & Randy Eldman
Coraline - Bruno Coulais
The Shipping News - Christopher Young
Wolfman - Danny Elfman
Sherlock Holmes - Hans Zimmer
Dead Man's Chest & At World's End - Hans Zimmer
Up - Michael Giacchino
Narnia: The Lion, the Witch, and the Wardrobe - Harry Gregson-Williams
Lord of the Rings Trilogy - Howard Shore
A Beautiful Mind - James Horner
The Happening - James Newton Howard
I Am Legend - James Newton Howard
Mulan - Jerry Goldsmith
Requiem for a Dream - Clint Mansell
Harry Potter and the Prisoner of Azkaban - John Williams
The Illusionist - Phillip Glass
I could go on for ages, I'm rather obsessed with film scores, there's so much to love. :]