EDIT: merged this list with that one:

http://originaltrilogy.com/forum/topic.cfm/List-of-movies-with-altered-aspect-ratios/topic/16466/

it will be not updated anymore, so please continue the discussion there, thanks!

List of movies with variable aspect ratio (in theaters AND in Blu-ray if not otherwise noted):

Biutiful
Brainstorm
Brother Bear
Enchanted
The Dark Knight
Galaxy Quest (3 ARs in theaters, 2 ARs in BD)
Hunger Games Catching Fire (theater)
Mission Impossible : Ghost Protocol (theater)
Scott Pilgrim vs The World
Star Trek - Into Darkness (theater)
Transformers - Revenge of the Fallen (IMAX Edition)
Tron: Legacy

don’t know if there are more, or any on DVD or other formats; if so, please let me know.

I watched only (Batman) The Dark Knight and at the beginning I was a bit confused; then I realized that with this presentation method I could see more than a “simple” 2.35:1 version, and I started to think about some movies that could be preserved using different sources, like open matte and letterbox for example.

I’d like to know what do you think about a movie released with variable aspect ratio, and if you like the idea of a fan preservation using this, let’s call it, variable aspect ratio method.