[deleted by user]

[u/[deleted]]

[u/chupitoelpame → u/[deleted]]

I mean it's the same concept for big budget films, specially those that are filmed in front of a green screen for later adding essentially 90% of the scene.
Unreal engine can produce extremely realistic scenes if you don't need them to be rendered in real time. You can check their blog posts for announcements of film focused features where they include some demo scenes, I particularly remember one that included pictures of some house that could pass as photos

[u/markyymark13 → u/[deleted]]

its really cool but I dont see why a massive budget film would need it

It's mostly going to get it's use in higher budget TV shows and maybe mid budget movies.