All most all new bluray release in the past 2 years the director has been involved in the look of the BD. Ironman is one of the best looking blurays out there, so I have no idea what your talking about on that.
Bad calibration can make a $5k tv look like junk. You don't need a ISF calibration, most tv's have the settings needed to look great as long as one knows what their doing.
B&M stores suck and it not a place to judge a tv or bluray. Most of the tv's are set to 'Vivid mode' and it will make anything cr@py. Nothing in say BB will look anything close to what you get in a theater.. It can not, the lighting is crazy, Engadget.com today has a article about the lighting in B&M stores and judging tv's PQ, sum it up you can not.
What sized tv do you have, model number and how far do you sit???????