The DCP is not the same master as the Blu-ray. The proportions and framing are different. It is in fact the 2002 DVD master.
DCP/DVD:
http://caps-a-holic.com/hd_vergleiche/multi_comparison.php?disc1=881&disc2=4005&cap1=8650&cap2=37194&art=full&image=7&hd_multiID=958&action=1&lossless=
DCP/Blu-ray:
http://caps-a-holic.com/hd_vergleiche/multi_comparison.php?disc1=4005&disc2=874&cap1=37194&cap2=8574&art=full&image=7&hd_multiID=958&action=1&lossless=#vergleich
crampedmisfit1990 said:
I also heard that they digitally erased some sparks or something by accident in one of the films, I think part III. I forget.
When the DeLorean is driving down the drive-in to go back to 1885, some of the flames are erased. The same thing happened with the first Gladiator Blu-ray- the dirt removal software erased spears and fireballs.