cut scene, in-game cinematic how to

hi all,

i have seen this video;

and there is that sort of cinematic in 0:50 in the video, where a black rectangle swipe in and camera move to certain targen and swipe out type of ‘cinematic’,

any suggestions/idea on how to do this in Unity?
are there any resource, tutorials or any resources that discuss this subject?

The simplest solution would be to make a black canvas sprite move down in front of the camera. The details of implementing such a thing are too broad to cover in a single answer; I suggest working on it yourself for a while and coming back if you run into any tricky bits.