The 1.78 ratio is negligible for me despite being a purist.
The UK version has noticeable grain but I did not see it theatrically as I previously mentioned so don't know how much may have been removed for the transfer.
I did not see any pink colour grading on the disc. The colours looked...
I recently watched "The Warriors" which was released in 2008 on Blu Ray (UK) and was astounded at how beautiful it looked.
I personally thought it was a perfect transfer and seriously doubt if it could be improved upon. Never watched it in cinemas on its release though so can't compare it to...