Really ? Could you name a few ?
Of course it’s only opinion. “better” for me, maybe not better
for you.
“Up” - saw both 3D and flat - loved the 3D and really thought
it made an overall better experience.
“Monster House” - flat it was just another haunted house and
kids movie. 3D made me feel like a kid again.
“Avatar” - not a favorite film of mine but I enjoyed the 3D
presentation much better than flat.
“Piranha 3D” - not a great (or even good) movie but I really
enjoyed the fun they had with the 3D. I can’t imagine sitting
through the flat version.
“Coraline” - better in 3D than flat.
“Cave of forgotten Dreams” - have not seen it flat so I can’t
compare, but it was wonderful in 3D.
“Tron: Legacy” - much better in 3D than flat.
“Hugo” - a master director and DP using 3D very well.
“Life of Pi” - just saw this on Saturday. Again, no comparison
to flat but wonderful use of the medium.