The best way to describe Inception is this: Inception is a mindfuck, but it's the BEST sex you could ever DREAM of.. no pun intended.
Inception was suspenseful, action filled, and seriously worth the 16.50 for imax. The plotline was the least bit predictable, for me at least(I'm the type who usually figures out the ending before the plot takes off). The acting was PHENOMENAL, the chemistry that group had was just amazing.
I can't recommend this movie enough. If you can see it in imax, DO IT.