When you charge $10 per ticket, $6 for a soda, and $8 for popcorn, you better be putting up something eye-popping on the screen.
Nobody's going to shell out those big bucks to see something like "The Soloist" - about a homeless violin player - unless you let him shoot lava out of his eyes and and launch him into an intergalactic space battle.
Quiet, understated, reflective movies are perfect for sitting at home and watching on the television. The big screen is for blowing big things up.
Reminds me of a truth stated on "3rd Rock from the Sun" over 10 years ago:
"I'm not spending $8 on a movie ticket to watch an alien play with a puppy. For that price, he better eat it."