One movie I can honestly say is special to me is Disney's "Up".
It's a family film, and it's Disney, but I love how the main character is an old man who learns to find adventure again.  Just goes to show that there's always a little adventure in us no matter how old we are.
The music is just awesome and the 3D animation is brilliant.  And you just gotta love Doug the dog! 
 
I love this movie particularly it's one I can enjoy with my dad.  I plan on watching it with him when I go back home for Christmas in a few days.  The movie also reminds of my dad because he always has this sense of youth to him that I think I felt from watching the movie.
Anyway...
What's a movie that's special to you?  And why is it special?