Others were complaining about the sound in the theaters. Particularly the dialogue. The director Chris Nolan said he scored it that way, using sound as a technique...
It's the ol' situation where the effects are cranked up to 10 while the actor's sentences get washed away in the background...thought it was just me or the copy I watched. (a 1080P Imax rip...)
humble advice - crank up the sound because some interactions are hugely important and they're only one or two sentences...