Website for BD iso size

Is there a website that list all the exact filesize GB of the Blu-ray disc?

You mean for each individual movie or just the standard specs of blank media?

The movie target size. Like sometimes shows 50gb or 25gb disc, but I was wondering if there is a list out there that will say Dark Knight is 35.32gb.

Unofficial Blu-ray Audio and Video Specifications Thread - AVS Forum