That crop you just did mateo is completely wrong.
HAIRSPRAY was shot in the aspect ratio of 2.35:1, which means it was not matted.
What you are showing is a full-frame image cropped to simulate a 2.35:1 aspect ratio, which is WRONG!
For the Fullscreen does NOT show more at the top and bottom -- it is equal to the widescreen 2.35:1 image. For the Fullscreen DVD they left the top and bottom of the image -- they only cut on the left and right sides of the image.
You're showing a totally misleading representation and makes people believe you see more of the top and bottom of the image in Fullscreen -- which you do NOT since the film wasn't matted when filmed.
I hope this clears up YOUR confusion between the difference of widescreen and fullframe/fullscreen.
Here's the difference of how HAIRSPRAY was done for Widescreen and the Fullscreen DVD:
WIDESCREEN 2.35.1 DVD:
FULLSCREEN 1.33.1 formatted DVD:
See how both versions show the same composition -- top and bottom of image?
This is what YOU were stating:
A Fullframe image being cropped to resemble Widescreen: