Well, Starcraft was released when games didn't install the whole thing on your disk (as disks had less capacity), so a crack from games from 2000 and on wasn't enough. CD was needed only to check out if it's original. This is why you need to copy install.exe and use some shenanigans to make it work without CD.
I didn't get that thing about cinematic.
https://www.hiveworkshop.com/threads/project-revolution-snowflake-entertainment.252664/